Perhaps you should try some spelling variations:
trung thanh » truong thanh
dung cong » dung trong
ban thanh » ban hanh, ban hang
thanh mau » hanh mau, thanh san, thanh hai
ho trieu » mot trieu, 25 trieu, 30 trieu
tran van » luan van
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - thanh ((trung thanh) or (tran van)) dung cong ban thanh mau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - thanh ((trung thanh) OR (tran van)) dung cong ban thanh mau.
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - thanh ((trung thanh) or (tran van)) dung cong ban thanh mau*.