Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
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 sach) or (chieu sang)) - ((anh tang) OR (anh dang)) quan dung cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - ((anh tang) OR (anh dang)) quan dung cong thanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chieu sang)) - ((anh tang) OR (anh dang)) quan dung cong thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu sang)) - ((anh tang) OR (anh dang)) quan dung cong thanh toan ban*.