Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
thanh tung » thanh cong
luong cong » dung cong, trong cong, cong cong
cap luong » cat luong, cao luong, chat luong
hoc hieu » hoc thieu, hoc hien, doc hieu
tung cap » trung cap, cung cap, thong cap
cong tac » cong ty
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu nganh - thanh tung cap luong cong tac ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - thanh tung cap luong cong tac ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - thanh tung cap luong cong tac ((than cau) or (toan cau))*.