Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
nhung cong » dung cong, thong cong, hang cong
he nhieu » hop nhieu, phu nhieu, he dieu
cong tan » cong tac, cong san, cong thanh
ban cau » bang cau, van cau, ban dau
ban can » ban dan, ban hang, ban hanh
luat » luan, xuat

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

• Performing a fuzzy search may retrieve terms with similar spellings: he nhieu tang - canh ((trinh luat) or (sinh vat)) nhung cong tan ((ban cau) OR (ban can))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: he nhieu tang - canh ((trinh luat) OR (sinh vat)) nhung cong tan ((ban cau) OR (ban can)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "he nhieu tang - canh ((trinh luat) or (sinh vat)) nhung cong tan ((ban cau) OR (ban can))".
• Adding a wildcard symbol may retrieve word variants: he nhieu tang - canh ((trinh luat) or (sinh vat)) nhung cong tan ((ban cau) OR (ban can))*.