Perhaps you should try some spelling variations:
cong cong » cong dong, trong cong, dung cong
cach thuc » cac thu
anh thuc » am thuc, dan thuc, anh tu
thi cong » tai cong, thien cong
cac chu » cac thu, cac che, cac khu
ve ly » ve li, ve y, de ly
ve ky » va ky, ke ky
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 chu) or (((cach thuc) or (anh thuc)))) đe co ban ((ve ly) OR (ve ky)) thi cong cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tap ((cac chu) OR (((cach thuc) OR (anh thuc)))) đe co ban ((ve ly) OR (ve ky)) thi cong cong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuyen tap ((cac chu) or (((cach thuc) or (anh thuc)))) đe co ban ((ve ly) OR (ve ky)) thi cong cong".
• Adding a wildcard symbol may retrieve word variants: tuyen tap ((cac chu) or (((cach thuc) or (anh thuc)))) đe co ban ((ve ly) OR (ve ky)) thi cong cong*.