Perhaps you should try some spelling variations:
phung cong » nhung cong, phong cong, nhung chong
tran vann » tan van, tran vinh, tran manh
chu xanh » chu manh, chieu xanh, chua xang
tran van » luan van
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
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 ((tran vann) or (tran van)) phung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho chu xanh - hanh ((tran vann) OR (tran van)) phung cong tan toan ban*.