Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh nang » anh nang, ganh nang, hanh mang
quan cong » luan cong, quan dong, quan long
ho chieu » theo chieu, hoc thieu, doi chieu
qua cong » cua cong, qua song, va cong
cong tac » cong ty
than cap » khan cap, thanh lap, thanh cac
toan cau » toan cao, toan ban, toan tap

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 - hanh nang ((quan cong) OR (qua cong)) cong tac ((than cap) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh nang ((quan cong) OR (qua cong)) cong tac ((than cap) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh nang ((quan cong) OR (qua cong)) cong tac ((than cap) or (toan cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh nang ((quan cong) OR (qua cong)) cong tac ((than cap) or (toan cau))*.