How does Google know if I type redflower.jpg I mean Red flower?

Question

I'm curious what terms or programming methodology are used when Google shows you the "did you mean" link for a word consisting of several words?

For example, if I type "redflower.jpg", he knows how to break it into a Red Flower. Is there a common paradigm for this kind of operation? Will a Lucene search give you this?

thank!

Answer 1

If google does not see many suitable results for reflowers.jpg, it may try to shorten the words in a few words until it finds many suitable results.

(.jpg), , .

, ( , ), , .

Answer 2

, , , redflowers.jpg? , "redflowers.jpg", - , " " , .

, , ( ), .