Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
tuan dung » tuan duong, tran dung, tan dung
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan tap » toan ban

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 trung) or (thanh tung)) tuan dung ((cong tan) OR (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((thanh trung) OR (thanh tung)) tuan dung ((cong tan) OR (cong san)) toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((thanh trung) or (thanh tung)) tuan dung ((cong tan) OR (cong san)) toan tap*".