Perhaps you should try some spelling variations:
quyen tap » tuyen tap, luyen tap, quyen cap
cong cong » cong dong, trong cong, dung cong
cac che » cac he, cac chien, cac chat
cac khu » cac thu, cac khoi, cac kieu
ban vat » bang vat, ben vat, van vat
te cong » tai cong, thi cong, thu cong
ly te » y te, ly ke, ly ve

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

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