Perhaps you should try some spelling variations:
thanh duong » thanh huong, thanh cuong, thanh vuong
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) sach - thanh duong qua dung cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - thanh duong qua dung cong tac than cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sach - thanh duong qua dung cong tac than cau*.