Perhaps you should try some spelling variations:
nang sang » nang song, nong san
treo chu » theo chu, tho chu
chu nang » chuc nang, chua nang, cuu nang
va thong » va thuong, va phuong, he thong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
sang va » hang va, song va, sang ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: treo chu nang - nang sang va thong ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: treo chu nang - nang sang va thong ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: treo chu nang - nang sang va thong ((cong dan) or (cong san)) toan cau*.