Can we get the "Pick up at door” service of return result only?

Dear Sir/ Madam,

We want to get the rate from API for courier "Pick up at door” service only, and we find the variable is “courier_does_pickup” => 1 .

For the return data, it displays 3 records sometimes and “Sorry, we couldn't find any shipping solutions based on the information provided.” most of the time. Could you teach us how to display more than 5 records for each request?

Many thanks!!