Half the time episode searches dont find anything for no reason

A lot of the time when sonarr searches for an episode, the indexers turn up nothing but if i click it a couple more times it will find them, its happening with all the indexers ive tried so im not sure whats going on.

15-3-26 09:04:24.7|Info|NzbSearchService|Searching 2 indexers for [Linux : 22]
15-3-26 09:04:28.7|Info|DownloadDecisionMaker|No reports found
15-3-26 09:04:28.7|Info|EpisodeSearchService|Episode search completed. 0 reports downloaded.
15-3-26 09:04:37.6|Info|NzbSearchService|Searching 2 indexers for [Linux : 22]
15-3-26 09:04:43.0|Info|DownloadDecisionMaker|Processing 28 reports
15-3-26 09:04:47.6|Info|Nzbget|Adding report [[TotallyLinuxSubtitles].Linux.-.22.[720p]] to the queue.
15-3-26 09:04:47.9|Info|DownloadService|Report sent to download client.[TotallyLinuxSubtitles].Linux.-.22.[720p]

Sounds like issues with your indexers, they’re returning 0 results so there is nothing for Sonarr to process.