Perhaps you should try some spelling variations:
cong cong » cong dong, trong cong, dung cong
cac kieu » cach tieu, cac yeu, tac kiem
thi cong » tai cong, thien cong
cac khoi » cac thoi, cac khoan, cach thoi
cac khu » cac thu
ve y » ve ky, ve _, te y
ke y » ke ky, ke o
tuyen » truyen, quyen

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

• Performing a fuzzy search may retrieve terms with similar spellings: tuyen tap ((((cac khu) OR (cac khoi))) or (cac kieu)) đe co ban ((ve y) or (ke y)) thi cong cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tap ((((cac khu) OR (cac khoi))) OR (cac kieu)) đe co ban ((ve y) OR (ke 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 kieu)) đe co ban ((ve y) or (ke y)) thi cong cong".
• Adding a wildcard symbol may retrieve word variants: tuyen tap ((((cac khu) OR (cac khoi))) or (cac kieu)) đe co ban ((ve y) or (ke y)) thi cong cong*.