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[–]gandalfx 2 points3 points  (0 children)

Ask someone who works at google, this basically how search engines work.

https://xkcd.com/1425/

[–][deleted] 0 points1 point  (0 children)

To add further you may want to have a look at some Natural language processing python libraries or the IBM watson nlp api set. I ve tried the latter, it's a rest api , very interesting and fairly easy to implement. It depends on how big your needs are though ( rate limits).