Perhaps you should try some spelling variations:
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
tra van » tran van, trang van, tranh van
ta van » tan van, tap van, va van

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)) - thanh ((tra van) OR (ta van)) trong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu manh)) - thanh ((tra van) OR (ta van)) trong cong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chu manh)) - thanh ((tra van) OR (ta van)) trong cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu manh)) - thanh ((tra van) OR (ta van)) trong cong tan toan cao*.