Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nganh khoa » nganh hoa, nganh khong, doanh khoa
thanh nhan » thanh phan, thanh san, doanh nhan
thanh toan » thanh hoa, thanh san, tinh toan
hoc nganh » hoc nhanh
dich hoc » sinh hoc, hinh hoc, tinh hoc
khoa hoc » hoa hoc
su dich » su tich, su dinh, chu dich
huu van » cuu van, huu han, luu van
van hoc » van hoa
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: su dich hoc tap, nghien huu van hoc nganh khoa hoc ma hoi va ((thanh nhan) or (thanh toan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su dich hoc tap, nghien huu van hoc nganh khoa hoc ma hoi va ((thanh nhan) OR (thanh toan)).
• Adding a wildcard symbol may retrieve word variants: su dich hoc tap, nghien huu van hoc nganh khoa hoc ma hoi va ((thanh nhan) or (thanh toan))*.