Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh tran » thanh trang, thanh toan, thanh tra
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
hieu lang » hieu quang, nhieu tang, hieu van
tran luan » tranh luan, tran xuan, tran tuan
cong tan » cong tac, cong san, cong thanh
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 (hieu lang)) - thanh tran luan chung cong tan ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (hieu lang)) - thanh tran luan chung cong tan ((toan ban) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (hieu lang)) - thanh tran luan chung cong tan ((toan ban) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (hieu lang)) - thanh tran luan chung cong tan ((toan ban) or (toan tap))*.