Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chuc danh » chuc nganh, thuc hanh, chuc nang
chu manh » ho manh, chu han, chu van
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
san toan » van toan, dan toan, manh 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 ((chuc danh) or (chu manh)) - ((canh tranh) or (anh tang)) va nhung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chu manh)) - ((canh tranh) OR (anh tang)) va nhung cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chu manh)) - ((canh tranh) or (anh tang)) va nhung cong san toan cao*.