Perhaps you should try some spelling variations:
quyen tam » huyen tam, quyet tam, truyen tam
cong cong » cong dong, trong cong, dung cong
dan thuc » dan toc, am thuc
bang vat » bang va, dang vat, cang vat
tam dan » nam dan, tam van, ham dan
ban vat » ben vat, ban va, van vat
y tai » ty tai, _ tai, o tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: quyen tam dan thuc đe co ((ban vat) OR (bang vat)) ((((y tai) OR (ly tai))) OR (y thai)) cong cong~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "quyen tam dan thuc đe co ((ban vat) OR (bang vat)) ((((y tai) or (ly tai))) or (y thai)) cong cong~".
• Adding a wildcard symbol may retrieve word variants: quyen tam dan thuc đe co ((ban vat) OR (bang vat)) ((((y tai) or (ly tai))) or (y thai)) cong cong*.