1. Full name: Vuong Thi Hai Yen                                     2. Gender: Female

3. Date of birth: 22/02/1980                                            4. Place of birth: Tuyen Quang

5. Admission decision number 2798/2012/QĐ-XHNV-SĐH, dated on December 28th, 2012 issued by the University of Social Sciences and Humanities.

6. Changes in academic process:          

- The thesis has been extended in 2 years basing on decision numbered 113/QĐ-XHNV, dated on January 15th, 2016 and decision numbered 4617/ QĐ-XHNV, dated on December 29th, 2016 signed by the president of the University of Social Sciences and Humanities.

7. Official thesis title: A cross-cultural research on the refusals of offers and invitations by native speakers of American English and Vietnamese

8. Major: Contrastive Linguistics            

9. Code:  62 22 0241    

10. Supervisors: Assoc. Prof. Ph.D Vu Thi Thanh Huong

11. Summary of new findings of the thesis:

- The thesis has listed, described and had contrastive analysis in details on using all formulas to express refusals of offers and its refusal strategies by native speakers of American English and Vietnamese to point out similarities and differences in two languages.

- The thesis has listed, described and had contrastive analysis in details on using all formulas to express refusals of invitations and its refusal strategies by native speakers of American English and Vietnamese to point out similarities and differences in two languages.

- The thesis has compared the impact of power and gender factor on the choice of strategies for rejecting invitations by native speakers of American English and Vietnamese.

12. Practical applicability:

- The research results partly contribute to compile Vietnamese language books for foreigners, English language books for the Vietnamese people, translation aspect as well as preserve the purity of Vietnamese.

13. Further research directions:

- Studying about non- verbal expressions of refusals such as head shaking, silence, frowning, shrugging, and facial expressions instead of verbal expressions in communication.

- Studying utterances of refusing offers or invitations in natural language materials appearing in many social contexts with different communication respondents, instead of in literature, short stories, Vietnamese dramas, foreign television films.

- Comparing the choices of expressing formulas and factors towards refusals of offers and invitations with those of demands, requests and proposals.  

14. Thesis- related publications: 

 [1] Vuong Thi Hai Yen (2017), “The speech act of refusal of offers by American native speakers of English and Vietnamese”, Journal of Language and Life, Volume 12, pp.67-73

[2] Vuong Thi Hai Yen (2017), “Semantic formulas of expressing direct refusals of offers in English”, Journal of Vietnam Institute of Lexicography and Encyclopedia, Volume 6, pp.216- 221.

 [3] Vuong Thi Hai Yen (2017), “The speech act of direct refusal of invitations by American English native speakers and Vietnamese”, National Scientific Conference on Research and Literature teaching in the context of invovation and integration, Hanoi Pedagogical University 2, pp.638-643.

[4] Vuong Thi Hai Yen (2018), “Expressing formulas of direct refusals of offers by Vietnamese”, Social science and Humanities (4), Dalat University Journal of Science, pp.77-89.

[5] Vuong Thi Hai Yen (2018), “Semantic formulas of expressing direct refusals of invitations by American native speakers of English and Vietnamese”, Hung Vuong University’s scientific Conference, pp.315-322.