Perhaps you should try some spelling variations:
quyen cap » quyen cach, huyen cao, quyen con
cach thuc » cac thu
cong cong » cong dong, trong cong, dung cong
anh thuc » am thuc, dan thuc, anh tu
dang vat » dang van, dong vat, dang nhat
co dang » cao dang, co dan, co dong
te cong » tai cong, thi cong, thu cong
vat y » vat ly, vat _
tuyen » truyen

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) or (quyen cap)) ((cach thuc) or (anh thuc)) đe co dang vat y te cong cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tuyen tap) OR (quyen cap)) ((cach thuc) OR (anh thuc)) đe co dang vat y te cong cong.
• Adding a wildcard symbol may retrieve word variants: ((tuyen tap) or (quyen cap)) ((cach thuc) or (anh thuc)) đe co dang vat y te cong cong*.