google search & app playstore notes

Google Search techniques:
https://support.google.com/websearch/answer/2466433?hl=en

I didn't realize that wildcards could still be used (but only in place of full words, not part of a word).

You can put "cache:" in front of a URL to view Google's cache of the page, even when the entry for that URL in their search results didn't include the option to view the cached page.

..

In the past I had found a way of searching the Google Play Store for apps without ads. But I don't remember how I did it, as adding -"Contains Ads" to the search string doesn't work today; it still returns apps whose pages show "Contains Ads"


This seems to work ok, but you have to do it as a regular Google search, not from within the Play Store:
site:play.google.com/store/apps/details -"Contains ads" -"in-app purchases"

From:
https://android.stackexchange.com/questions/34759/advanced-searching-in-play-app-store