Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
cong cong » cong dong, trong cong, dung cong
cac thoi » cac toi, cac tro, cac thu
thi cong » tai cong, thien cong
ban le » ban ve
y thi » ky thi, y thai, ly thi
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 ((cach thuc) OR (((cac thoi) OR (cac hop)))) đe co ban le y thi cong cong~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuyen tap ((cach thuc) OR (((cac thoi) OR (cac hop)))) đe co ban le y thi cong cong".
• Adding a wildcard symbol may retrieve word variants: tuyen tap ((cach thuc) OR (((cac thoi) OR (cac hop)))) đe co ban le y thi cong cong*.