<div class="search-venda">
   <input class="form-control"  type="text"  [(ngModel)]="term" (keyup)="onKey($event, result)"  autocomplete="off" placeholder="Digite para pesquisar">
</div>

<tr  *ngFor="let submission of vendas | filter:term; ">
              <td>{{submission.cnpj}}</td>
              <td>{{submission.razao_social}}</td>
              <td>{{submission.funcionario}}</td> </tr>