I have a content source in SharePoint 2013 search which crawl files from a file share. Some of the files have "Compress contents to save disk" attribute set to true. 

These files are being crawled as I can see them in Crawl logs. But when I search for these documents in search center, it only return the documents which don't have compression attribute set.  I have even tried searching document title. Any idea?

Do you have any errors logged in the crawl log for those files?

No error at all. Everything get crawled properly as you can see below.

Started	Completed	Duration	Type	Successes	Warnings	Errors	Top Level Errors	Deletes	Not modified	Security updates	Security errors	Crawl Rate (dps)	Repository Latency (ms)
2/20/2015 10:32 AM	2/20/2015 10:34 AM	00:01:42	F	53	0	0	0	0	0	0	0	0.5	31

Can you find the particular items in the crawl log?

Yes, I can find all item in crawl logs which are not coming in search results

Hi Rashid,

What keyword did you use for searching the compressed file?

As your description, I set a file as the below:

Then I created a File Share content source pointed to the folder which contains the file, then start a full crawl.

After crawling, I went to my search center, and searched, the result was:

When you search the compressed file, check whether the item title returns a part of the content of the document.

Best Regards,

Wendy

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