Perhaps you should try some spelling variations:
cong cong » cong dong, trong cong, dung cong
cac thoi » cac toi, cac hop, cac tro
thi cong » tai cong, thien cong
cac khoi » cac khoan, cach thoi, hoc khoi
cac khu » cac thu, cac kieu
le y » le ky, le sy, le _
ly y » ly ky
tuyen » truyen, quyen

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tap ((((cac khu) OR (cac khoi))) OR (cac thoi)) đe co ban ((le y) OR (ly y)) thi cong cong~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuyen tap ((((cac khu) or (cac khoi))) or (cac thoi)) đe co ban ((le y) OR (ly y)) thi cong cong~".
• Adding a wildcard symbol may retrieve word variants: tuyen tap ((((cac khu) or (cac khoi))) or (cac thoi)) đe co ban ((le y) OR (ly y)) thi cong cong*.