Perhaps you should try some spelling variations:
truyen tai » truyen dai, truyen bai, truyen tam
tuyen tai » tuyen tap, xuyen tai, nguyen tai
cach thuc » anh thuc, cac thu
cong cong » cong dong, trong cong, dung cong
ban kym » ban kem
te cong » tai cong, thi cong, thu cong
ban ky » van ky, dan ky

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tuyen tai) or (truyen tai)) cach thuc đe co ((ban ky) or (ban kym)) y te cong cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tuyen tai) OR (truyen tai)) cach thuc đe co ((ban ky) OR (ban kym)) y te cong cong.
• Adding a wildcard symbol may retrieve word variants: ((tuyen tai) or (truyen tai)) cach thuc đe co ((ban ky) or (ban kym)) y te cong cong*.