Dynamic　symmetric　searchable　encryption　(DSSE)　enables　clients　to　perform　keyword-based　searches　on　encrypted　data　outsourced　to　semi-trusted　cloud　servers.　However,　file　injection　attacks　severely　compromise　the　data　privacy　of　DSSE,　and　the　limitation　of　single-keyword　search　restricts　its　practical　applications.　To　address　these　issues,　we　propose　a　conjunctive　keyword　search　scheme　with　forward　privacy　in　this　paper.　We　first　utilize　a　pseudo-random　function　and　random　input　values　to　construct　an　inverted　index　and　then　employ　a　t-puncturable　pseudo-random　function　to　construct　a　forward　index.　Combining　these　two　indexes　enables　our　scheme　to　support　conjunctive　keyword　searches.　In　addition,　since　no　information　about　the　keywords　is　leaked　during　the　update,　our　scheme　achieves　forward　privacy　and　resists　file　injection　attacks　effectively.　Finally,　security　analysis　and　experimental　evaluations　demonstrate　the　security　and　effectiveness　of　our　scheme.