Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
hanh trang » thanh trung, canh tranh, hanh trinh
luat chung » luan chung, luat thuong, cua chung
luat dung » suat dung, luat quang, thuat dung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) OR (chieu xanh)) - hanh trang ((luat dung) or (luat chung)) cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - hanh trang ((luat dung) OR (luat chung)) cong tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (chieu xanh)) - hanh trang ((luat dung) or (luat chung)) cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (chieu xanh)) - hanh trang ((luat dung) or (luat chung)) cong tac toan ban*.