How to get more results from issue picker api response?

I am trying to get issue picker suggestions. it returns very few counts from current search response. How to get more records? is there any way to specify how many records we want in the response?
API:

https://myapp.atlassian.net/rest/api/3/issue/picker?
    currentIssueKey=&
    showSubTasks=true&
    showSubTaskParent=true&
    query=test%20case&
    currentJQL=issueType=10010

Note: i need to send both query and current jQL.