Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
thong cong » trong cong, tong cong, thong thong
tranh van » tran van, trinh van, thanh van
van thong » van thuong, van phong, va thong
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 tranh van thong cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhieu tang)) - canh tranh van thong cong san than cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhieu tang)) - canh tranh van thong cong san than cau*.