Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh bac » nhanh bac, thanh bai, thanh san
ho chieu » theo chieu, hoc thieu, doi chieu
tung cap » trung cap, thong cap, trong cap
cung cap » trung cap
cong tac » cong ty
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - thanh ((tung cap) OR (cung cap)) trong cong tac ((khan cap) or (thanh bac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh ((tung cap) OR (cung cap)) trong cong tac ((khan cap) OR (thanh bac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh ((tung cap) OR (cung cap)) trong cong tac ((khan cap) or (thanh bac))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh ((tung cap) OR (cung cap)) trong cong tac ((khan cap) or (thanh bac))*.