Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
manh khung » manh hung, manh tung, anh hung
khung cua » chung cua, khung luan, chung cu
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
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: theo ((chieu sang) or (chieu sach)) - manh khung cua bang cong tan ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu sach)) - manh khung cua bang cong tan ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chieu sach)) - manh khung cua bang cong tan ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu sach)) - manh khung cua bang cong tan ((toan cao) OR (toan tap))*.