Perhaps you should try some spelling variations:
thanh tung » thanh cong
mot chieu » doi chieu, ho chieu
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
doi chi » doi khi
va dung » van dung, va duong, vat dung

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) or (doi chi)) sach - ((thanh trung) or (thanh tung)) va dung cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chi)) sach - ((thanh trung) OR (thanh tung)) va dung cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chi)) sach - ((thanh trung) or (thanh tung)) va dung cong dan than cau*.