Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
tranh vat » trinh vat, tranh va, tranh van
cong lang » cong vang, cong luong, cong quang
vat hang » van hang, dat hang, va hang
cong van » cong vang, cong san, song van
thanh tu » hanh tu, nhanh tu, thanh tung

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 sang) or (chieu sach)) - canh tranh vat hang ((cong van) or (cong lang)) thanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - canh tranh vat hang ((cong van) OR (cong lang)) thanh tu.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu sach)) - canh tranh vat hang ((cong van) or (cong lang)) thanh tu*.