I am querying for results of /search/advanced. The request I am sending is

https://api.stackexchange.com/2.2/search/advanced?key=`key`&access_token=`access_token`&site=stackoverflow.com&page=1&pagesize=20&order=desc&sort=relevance&q=signalr&filter=!tRhd)yG5RfdF0fv8E-NwvlZNrfzIwPf  

The question as marked in this snapshot is not present in the json result.

Also, question titled SignalR - StartUp has is_answered = true even when there is no accepted answer. Another question signalR undefined has is_answered = false which has same conditions, i.e., no accepted answer. Here the first case is giving wrong results.

Kindly give access_token and key in the above link.