Perhaps you should try some spelling variations:
thanh tung » thanh cong
luan trong » quan trong, luat trong, luan tuong
tung luan » dung luan, tang luan, tong luan
chinh cau » chinh chau, chinh ca, chinh can
nho hieu » nha hieu, nho sieu, nhu hieu
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, can cau, nhanh cau
ho hieu » ho chieu, hoi hieu, co hieu

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

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