Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trong quan » tong quan, thong quang, luong quan
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong san » cong tac
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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

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