Perhaps you should try some spelling variations:
thanh phong » thanh phuong, khanh phong, thanh hong
hoc thanh » hoc nhanh, hoan thanh, hoc phan
phong hoc » phong ho, thong hoc, phuong hoa
danh nhan » thanh nhan, benh nhan, dung nhan
dich hoc » sinh hoc, hinh hoc, tinh hoc
tu dich » te dich, chu dich, hut dich
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
ma hoi » mai hoi, xa hoi, ma hoa

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 cuu mon hoc thanh phong hoc ma hoi ((danh nhan) or (doanh nhan)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dich hoc tap, nghien cuu mon hoc thanh phong hoc ma hoi ((danh nhan) OR (doanh nhan)) dan.
• Adding a wildcard symbol may retrieve word variants: tu dich hoc tap, nghien cuu mon hoc thanh phong hoc ma hoi ((danh nhan) or (doanh nhan)) dan*.