Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nhanh khoa » nhan khoa, nganh khoa, hang khoa
thanh nhan » thanh phan, thanh san, thanh toan
hoc nhanh » hoc nganh, hoc phan
dich hoc » sinh hoc, hinh hoc, tinh hoc
khoa hoc » hoa hoc
su dich » su tich, su dinh, chu dich
han hoc » nhan hoc, than hoc, van hoc
ma hoi » mai hoi, xa hoi, ma hoa
toan » tran

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 han hoc nhanh khoa hoc ma hoi va ((thanh nhan) or (tinh toan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su dich hoc tap, nghien huu han hoc nhanh khoa hoc ma hoi va ((thanh nhan) OR (tinh toan)).
• Adding a wildcard symbol may retrieve word variants: su dich hoc tap, nghien huu han hoc nhanh khoa hoc ma hoi va ((thanh nhan) or (tinh toan))*.