Perhaps you should try some spelling variations:
trung thanh » truong thanh
dung cong » dung trong
tan thanh » tran thanh, tang thanh, toan thanh
thanh cau » thanh chau, thanh mau, nhanh cau
ho trieu » mot trieu, 30 trieu, ho chieu
25 trieu » 30 trieu
tran van » luan van
cong tan » cong tac, cong san, cong thanh

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) or (25 trieu)) tinh - thanh ((trung thanh) or (tran van)) dung cong tan thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (25 trieu)) tinh - thanh ((trung thanh) OR (tran van)) dung cong tan thanh cau.
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) or (25 trieu)) tinh - thanh ((trung thanh) or (tran van)) dung cong tan thanh cau*.