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 » thong hoc, phuong hoa, phong khoa
van thanh » ban thanh, van tuan
thanh van » thanh san, thanh toan, thanh phan
dich hoc » sinh hoc, hinh hoc, tinh hoc
phong ho » phong cho, phong tho, phung ho
tu dich » te dich, chu dich, hut dich
hoi van » hoi va, hoi dan, hai van
cua mo » cua mot, cua moi, cua bo
mo hoc » mon hoc, co hoc

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