Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
khanh cong » thanh cong, hanh cong, khach cong
thanh tom » thanh tam, thanh toan, thanh tra
thanh hoa » thanh pho
van khanh » van thanh, van hanh, van anh
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: mot ((chieu sach) OR (chieu sang)) - ((thanh tom) or (thanh hoa)) van khanh cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot ((chieu sach) OR (chieu sang)) - ((thanh tom) OR (thanh hoa)) van khanh cong tan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "mot ((chieu sach) OR (chieu sang)) - ((thanh tom) or (thanh hoa)) van khanh cong tan toan cao*".