Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
canh sinh » canh tinh, canh binh, tinh sinh
vat nhung » va nhung, vap nhung, vai nhung
nho hieu » nha hieu, nho sieu, nhu hieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chan cau » phan cau, can cau, chinh 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 sinh vat nhung ((cong dan) or (cong tan)) chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - canh sinh vat nhung ((cong dan) OR (cong tan)) chan cau.
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - canh sinh vat nhung ((cong dan) or (cong tan)) chan cau*.