Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
canh trinh » canh tranh, hanh trinh, canh tinh
nhung cong » dung cong, thong cong, hang cong
trinh van » trinh han, trinh quan, trinh toan
van nhung » van nhuong, va nhung, van hung
cong san » cong tac
san than » sang than, san thanh, ban than
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: ho ((chieu sach) or (nhieu tang)) - canh trinh van nhung cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhieu tang)) - canh trinh van nhung cong san than cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhieu tang)) - canh trinh van nhung cong san than cau*.