Perhaps you should try some spelling variations:
phong cong » phong chong, thong cong, chong cong
hanh tran » hanh trang, thanh tran, hanh tram
van phong » van dong, hai phong
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
tran van » luan van
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (chu manh)) - hanh tran van phong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu manh)) - hanh tran van phong cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu manh)) - hanh tran van phong cong tan toan cao*.