Google Images is one of the most comprehensive image search. Interestingly, Google Image Search allows you to search for images which have a face in them. The hack to get images which contains faces is as follows
In order to get images containing faces, all you need to do is add &imgtype=face after the image search query.
Click here to see a basic image search for the term Mango and this image search gives you the results for Mango with faces.
Hope you enjoyed this trick.
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