Perhaps you should try some spelling variations:
nghien hieu » nghiep hieu, nghe hieu, thien hieu
nganh dung » ngan dung, anh dung, nganh cong
goc nganh » hoc nganh, hoc nhanh, cac nganh
thanh van » thanh san, thanh toan, thanh phan
hieu mot » thieu mot, hieu moi, hieu so
thuoc ma » hoc ma, duoc ma
va thanh » gia thanh, ban thanh, va tinh
anh hoc » benh hoc, hinh hoc, anh khoa
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 ((anh hoc) or (sinh hoc)) dai, nghien hieu mot goc nganh dung thuoc ma hoi va thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((anh hoc) OR (sinh hoc)) dai, nghien hieu mot goc nganh dung thuoc ma hoi va thanh van.
• Adding a wildcard symbol may retrieve word variants: tu ((anh hoc) or (sinh hoc)) dai, nghien hieu mot goc nganh dung thuoc ma hoi va thanh van*.