Perhaps you should try some spelling variations:
quyen cach » quyen sach, quyen anh, quyen cap
dung cong » dung trong
bang vat » bang va, dang vat, cang vat
thi dung » thi huong, thi nhung, thi cong
cac khu » cac thu, cac khoi, cac kieu
cac che » cac he, cac chien, cac chat
ban vat » ben vat, ban va, van 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 cach ((cac khu) or (cac che)) đe co ((ban vat) or (bang vat)) _ thi dung cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: quyen cach ((cac khu) OR (cac che)) đe co ((ban vat) OR (bang vat)) _ thi dung cong.
• Adding a wildcard symbol may retrieve word variants: quyen cach ((cac khu) or (cac che)) đe co ((ban vat) or (bang vat)) _ thi dung cong*.