Perhaps you should try some spelling variations:
cach thoi » cach thuc, cach noi
cong cong » cong dong, trong cong, dung cong
cac thoi » cac toi, cac hop, cac tro
cac khu » cac khoi, cac kieu
cac thu » cach thuc
te cong » tai cong, thi cong, thu cong
ban le » ban ve
le y » le ky, le sy, ly y
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 thu))) or (((cach thoi) OR (cac thoi)))) đe co ban le y te cong cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tap ((((cac khu) OR (cac thu))) OR (((cach thoi) OR (cac thoi)))) đe co ban le y te cong cong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuyen tap ((((cac khu) or (cac thu))) or (((cach thoi) OR (cac thoi)))) đe co ban le y te cong cong".
• Adding a wildcard symbol may retrieve word variants: tuyen tap ((((cac khu) or (cac thu))) or (((cach thoi) OR (cac thoi)))) đe co ban le y te cong cong*.