Perhaps you should try some spelling variations:
chong cong » cong cong, thong cong, cuong cong
luan chong » luan chung, luan cong, luan phong
tang luan » dung luan
chu manh » ho manh, chu han, chu van
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » 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: chao ((chuc nang) or (chu manh)) - anh tang luan chong cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chuc nang) OR (chu manh)) - anh tang luan chong cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: chao ((chuc nang) or (chu manh)) - anh tang luan chong cong dan toan cau*.