Data　security　and　privacy　concerns　in　cloud　storage　services　compel　data　owners　to　encrypt　their　sensitive　data　before　outsourcing.　Standard　encryption　systems,　however,　hinder　users　from　issuing　search　queries　on　encrypted　data.　Though　various　systems　for　search　over　encrypted　data　have　been　proposed　in　the　literature,　existing　systems　use　different　encrypted　index　structures　to　conduct　search　on　different　search　query　patterns　and　hence　are　not　compatible　with　each　other.　In　this　paper,　we　propose　a　query　over　encrypted　data　system　which　supports　expressive　search　query　patterns,　such　as　single/conjunctive　keyword　query,　range　query,　boolean　query　and　mixed　boolean　query,　all　using　a　single　encrypted　index　structure.　To　the　best　of　our　knowledge,　the　proposed　system　enables　the　most　expressive　query　pattern　search　among　all　the　existing　solutions.　In　addition,　the　system　allows　data　users　to　simultaneously　query　over　encrypted　documents　from　multiple　data　owners　using　one　query　trapdoor　and　supports　flexible　user　authorization　and　revocation.　We　show　that　our　system　is　secure　and　resists　keyword　guessing　attack.　We　also　conduct　extensive　experiments　and　demonstrate　that　the　system　is　more　efficient　than　other　public　key　searchable　encryption　systems.　(C)　2018　Elsevier　Inc.　All　rights　reserved.