Perhaps you should try some spelling variations:
trung thanh » truong thanh
thanh trung » thanh tung
thanh dung » thanh duong, thanh tung, thanh hung
chua xang » chua nang, chuc nang, chu bang
dung cong » dung trong
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran tap » toan tap, tran tan, tran tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chua xang) or ((chuc OR phuc) nang)) - thanh trung thanh dung cong tac tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua xang) OR ((chuc OR phuc) nang)) - thanh trung thanh dung cong tac tran tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua xang) or ((chuc OR phuc) nang)) - thanh trung thanh dung cong tac tran tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) or ((chuc OR phuc) nang)) - thanh trung thanh dung cong tac tran tap*.