Perhaps you should try some spelling variations:
nghiem thuc » nghiem thuoc, nghiep thuc, nhiem thuc
nghiem chuc » nghiem thuoc, nghiem chat, nghiep thuc
tac nganh » cac nganh, tao nganh, tich nganh
nganh hoa » thanh hoa, khanh hoa, danh hoa
benh hoc » sinh hoc
cong tac » cong ty
nhan dan » phan dau, gian dan, nhan tai
tu benh » tru benh, thu benh, tuy benh
ma hoi » mai hoi, xa hoi, ma hoa
hoi ca » hoi cua, hoi cac, hoi cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu benh hoc tap, ((nghiem chuc) or (nghiem thuc)) cong tac nganh hoa hoc ma hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu benh hoc tap, ((nghiem chuc) OR (nghiem thuc)) cong tac nganh hoa hoc ma hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu benh hoc tap, ((nghiem chuc) or (nghiem thuc)) cong tac nganh hoa hoc ma hoi ca nhan dan*.