Perhaps you should try some spelling variations:
cong song » cong dong, song song, cong nong
tieu xanh » tieu danh, chieu xanh, dieu hanh
cong cong » cong dong, trong cong, dung cong
anh tang » anh dang, anh nang, anh sang
anh bang » anh hoang, anh quang, tinh bang
van than » van thanh, van thang, van tuan
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((anh tang) or (anh bang)) cua ((cong song) OR (cong cong)) van than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((anh tang) OR (anh bang)) cua ((cong song) OR (cong cong)) van than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((anh tang) or (anh bang)) cua ((cong song) OR (cong cong)) van than ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((anh tang) or (anh bang)) cua ((cong song) OR (cong cong)) van than ban*.