Perhaps you should try some spelling variations:
bang song » nang song
chu xanh » chu manh, chieu xanh, chua xang
song tan » song than, song van, cong tan
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
cong va » dong va, cong ha, cong tac
va bang » va nang, va lang, va ban
chuc » thuc, chua, phuc

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 (chuc nang)) - thanh cong va bang song tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chuc nang)) - thanh cong va bang song tan than cap.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chuc nang)) - thanh cong va bang song tan than cap*.