Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoc khanh » hoc nhanh, hoc thanh, hoc hanh
phong hoc » phong ho, thong hoc, phuong hoa
van thanh » ban thanh, van tuan
thanh van » thanh san, thanh toan, thanh phan
dich hoc » hinh hoc, tinh hoc, kinh hoc
hoi van » hoi va, hoi dan, hai van
cua mo » cua mot, cua moi, cua bo
mo hoc » mon hoc, co hoc
hoc xa » hoc ma

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((dich hoc) OR (sinh hoc)) tap, nghien cua mo hoc khanh phong hoc xa hoi van thanh van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((dich hoc) OR (sinh hoc)) tap, nghien cua mo hoc khanh phong hoc xa hoi van thanh van".
• Adding a wildcard symbol may retrieve word variants: tu ((dich hoc) OR (sinh hoc)) tap, nghien cua mo hoc khanh phong hoc xa hoi van thanh van*.