Perhaps you should try some spelling variations:
quyen cap » quyen cach, huyen cao, quyen con
thai cong » tai cong, thi cong, thai vung
thai son » thai den, thai do, thai hoc
cap cac » ca cac, cap sac, tap cac
cac thu » cach thuc, cac thoi
ban vat » bang vat, ben vat, ban va
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 cac thu đe co ban vat y ((((thai cong) OR (thai son))) or (thanh cong)) cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: quyen cap cac thu đe co ban vat y ((((thai cong) OR (thai son))) OR (thanh cong)) cong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "quyen cap cac thu đe co ban vat y ((((thai cong) OR (thai son))) or (thanh cong)) cong".
• Adding a wildcard symbol may retrieve word variants: quyen cap cac thu đe co ban vat y ((((thai cong) OR (thai son))) or (thanh cong)) cong*.