Perhaps you should try some spelling variations:
thieu nganh » hieu nganh, trien nganh, nghiep nganh
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
cong dan » cong tan, huong dan, cong dong
cong tac » cong ty
than cao » toan cao, thai cao, than cap
tung va » trung va, tuong va, dung va
va hang » van hang, va nang, va lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu nganh - thanh tung va hang ((cong dan) OR (((cong san) OR (cong tac)))) than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu nganh - thanh tung va hang ((cong dan) or (((cong san) OR (cong tac)))) than cao~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu nganh - thanh tung va hang ((cong dan) or (((cong san) OR (cong tac)))) than cao*.