Perhaps you should try some spelling variations:
cong cong » trong cong, dung cong, dang cong
quyen tap » tuyen tap, luyen tap, quyen cap
cac chu » cac che, ca chu, cac cau
cac khu » cac khoi, cac kieu
cac thu » cach thuc, cac thoi
ban ve » ban va
ve ky » va ky, ke ky
ky le » ky la
dong » dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: quyen tap ((((cac chu) or (cac khu))) or (cac thu)) đe co ban ve ky le ((cong cong) or (cong dong))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: quyen tap ((((cac chu) OR (cac khu))) OR (cac thu)) đe co ban ve ky le ((cong cong) OR (cong dong)).
• Adding a wildcard symbol may retrieve word variants: quyen tap ((((cac chu) or (cac khu))) or (cac thu)) đe co ban ve ky le ((cong cong) or (cong dong))*.