Sort through
Definition 1 of 2
Pro Tip 1/3Thorough Search
Used when carefully examining all parts to find something specific. 
I sorted through the emails to locate our conversation.
Pro Tip 2/3Detailed Review
Indicates a review process that is detailed and organized. 
The auditor sorted through the financial records.
Pro Tip 3/3Time Intensive
The process usually requires a considerable amount of time. 
She sorted through the entries all morning.