Cloud computing is completely internet-based approaches where all data’s and files are shared on a cloud. Data ownership in the cloud with increasing performance and range of offering, more and more enterprises is opting to take their services into the cloud. They are motivated to outsource their complex data management systems from local sites to commercial public cloud for more flexibility and economic savings. To protect the data privacy, cloud providers to build services that protect integrity of systems and the data itself. The perceptive data has to be encrypted before outsourcing for privacy, in which data utilization based on plaintext keyword search. To enable the data encryption in cloud, multi keyword search scheme is proposed. Related works on searchable encryption focus on single keyword search or Boolean keyword search, and rarely differentiate the search results. In this paper, we proposed cloud based multi keyword search and privacy requirement for secure cloud data.