Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
tay thiet » tai thiet, tao thiet, toan thiet
cong cong » cong dong, trong cong, dang cong
dung cong » dung trong
tap cach » tap cac, phap cach, va cach
ly thien » ly hien, ly thiet, li thien
ban ve » ban va
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 đe co ban ve ((ly thien) or (tay thiet)) ((cong cong) or (dung cong))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tap cach thuc đe co ban ve ((ly thien) OR (tay thiet)) ((cong cong) OR (dung cong)).
• Adding a wildcard symbol may retrieve word variants: tuyen tap cach thuc đe co ban ve ((ly thien) or (tay thiet)) ((cong cong) or (dung cong))*.