Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dung cong » dung trong
anh nang » ganh nang, anh bang, anh dang
nang qua » nang quan, nang dua, nang cua
qua dung » quang dung, su dung, qua song
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cap » khan cap, thanh lap, thanh cac

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 (trieu tinh)) - anh nang qua dung cong ban than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (trieu tinh)) - anh nang qua dung cong ban than cap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (trieu tinh)) - anh nang qua dung cong ban than cap*.