Perhaps you should try some spelling variations:
cong cong » trong cong, dung cong, dang cong
cac chat » cao chat, cac thuat, cac nha
cac thu » cach thuc, cac thoi
ban ke » ban kem, ban ve, ban le
ty tai » ly tai, tu tai, te tai
ke ty » ke ky, ke y, ke ly
tuyen » truyen, quyen
dong » dung

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 chat) or (cac thu)) đe co ban ke ty tai ((cong cong) OR (cong dong))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tap ((cac chat) OR (cac thu)) đe co ban ke ty tai ((cong cong) OR (cong dong)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuyen tap ((cac chat) or (cac thu)) đe co ban ke ty tai ((cong cong) OR (cong dong))".
• Adding a wildcard symbol may retrieve word variants: tuyen tap ((cac chat) or (cac thu)) đe co ban ke ty tai ((cong cong) OR (cong dong))*.