Perhaps you should try some spelling variations:
hanh dung » thanh dung, anh dung, hanh dong
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
chu manh » ho manh, chu han, thu minh
san toan » van toan, dan toan, manh toan
toan ban » van ban
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 manh) OR (chu van)) - hanh dung luan ((hang cong) or (bang cong)) san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chu manh) OR (chu van)) - hanh dung luan ((hang cong) OR (bang cong)) san toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((chu manh) OR (chu van)) - hanh dung luan ((hang cong) or (bang cong)) san toan ban".
• Adding a wildcard symbol may retrieve word variants: cho ((chu manh) OR (chu van)) - hanh dung luan ((hang cong) or (bang cong)) san toan ban*.