Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
hieu lang » chieu sang, hieu quang, nhieu tang
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
nho hieu » nha hieu, nho sieu, nhu hieu
cong dan » cong san, cong tan, cong dong
can cau » van cau, ban cau, ca 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 trinh vat nhung ((cong dan) OR (huong dan)) can cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho hieu lang - canh trinh vat nhung ((cong dan) OR (huong dan)) can cau".
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - canh trinh vat nhung ((cong dan) OR (huong dan)) can cau*.