In Google webmaster tools it shows that I have 309 pages indexed, but when I search using site:site.com appear about 180 only (On the first page appears about 608 results, something near the total number of posts).I have also noticed that some pages that were indexed before have simply disappeared from Google. In Google webmaster tools there is no error message or anything to indicate any punishment by Google.According to Google webmaster tools, daily new pages are indexed, but for some reason they are not displayed in the search.Am I really affected by some punishment by Google or this is some kind of bug?  How can I solve this problem and have all pages indexed normally?
Number of indexed pages with site: search less than reported in Google Webmaster Tools
google;google search console;google search;indexing;google index
You do not have an indexing problem. Google Webmasters Tools is the authoritative source of information about your website with Google. Whatever it says there is true. Operators like site: and link: are known to not show all relevant results. This is on purpose as it prevents others from knowing exactly Google is handling your website inhibits any attempts to manipulate the search results by others.