Perhaps you should try some spelling variations:
trung thanh » truong thanh
tran thanh » ban thanh, van thanh, quan thanh
chua xang » chua nang, chuc nang, chu bang
bang cong » dang cong, bang song, hang cong
cong doan » cong dan, cong hoan, dong doanh
doan van » doan va, hoang van, luan van
chu van » cuu van, chu han

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chu van) or (chua xang)) - hanh ((trung thanh) or (tran thanh)) bang cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chu van) OR (chua xang)) - hanh ((trung thanh) OR (tran thanh)) bang cong doan van ban.
• Adding a wildcard symbol may retrieve word variants: cho ((chu van) or (chua xang)) - hanh ((trung thanh) or (tran thanh)) bang cong doan van ban*.