Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
tranh vat » trinh vat, tranh va, tranh van
vat nhung » va nhung, vap nhung, vai nhung
nho hieu » nha hieu, nho sieu, nhu hieu
cong dan » cong san, cong tan, cong dong
van chat » cao chat
van cau » van dau, van hau, toan cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - canh tranh vat nhung ((cong dan) or (huong dan)) ((van cau) OR (van chat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - canh tranh vat nhung ((cong dan) OR (huong dan)) ((van cau) OR (van chat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho hieu lang - canh tranh vat nhung ((cong dan) or (huong dan)) ((van cau) OR (van chat))".
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - canh tranh vat nhung ((cong dan) or (huong dan)) ((van cau) OR (van chat))*.