Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
tranh va » tranh van, trang va, trinh va
san than » sang than, san thanh, van than
ban than » ban thanh, van thanh, ban hang
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 (chieu sang)) - canh tranh va hang cong ((san than) OR (ban than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - canh tranh va hang cong ((san than) OR (ban than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sang)) - canh tranh va hang cong ((san than) OR (ban than)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - canh tranh va hang cong ((san than) OR (ban than)) cao*.