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
ban vat » bang vat, ben vat, ban va
te cong » tai cong, thi cong, thu cong
vat y » vat ly, vat _

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

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