Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, dieu hanh, hien hanh
hang cong » dang cong, hang nong, bang cong
tranh va » tranh van, trang va, trinh va
cong san » cong tac
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, than cap
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((hieu manh) OR (hieu nganh))) or (chieu sang)) - canh tranh va hang cong san than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu manh) OR (hieu nganh))) OR (chieu sang)) - canh tranh va hang cong san than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((hieu manh) OR (hieu nganh))) or (chieu sang)) - canh tranh va hang cong san than cao".
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu manh) OR (hieu nganh))) or (chieu sang)) - canh tranh va hang cong san than cao*.