Perhaps you should try some spelling variations:
trung thanh » truong thanh
tran tuan » tran xuan, tran quang, tran thanh
dang cong » dung cong
cong doan » cong dan, cong hoan, dong doanh
chu xanh » chu manh, chieu xanh, chua xang
doan van » doan va, hoang van, luan van
cho chu » cho thue

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 xanh - hanh ((trung thanh) or (tran tuan)) dang cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho chu xanh - hanh ((trung thanh) OR (tran tuan)) dang cong doan van ban.
• Adding a wildcard symbol may retrieve word variants: cho chu xanh - hanh ((trung thanh) or (tran tuan)) dang cong doan van ban*.