Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
thuong gap » thuong mai, thuong va
hieu manh » chieu xanh, dieu hanh, hien hanh
thong cap » thong cac, trung cap, thong cua
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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 manh) OR (hieu nganh)) - thanh ((thong cap) or (thuong gap)) dung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (hieu nganh)) - thanh ((thong cap) OR (thuong gap)) dung cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) OR (hieu nganh)) - thanh ((thong cap) or (thuong gap)) dung cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) OR (hieu nganh)) - thanh ((thong cap) or (thuong gap)) dung cong tan toan ban*.