Is implementing search for symbols impossible? [closed]

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Closed 12 years ago.

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I tried to Google for symbol £ but surprised with a response

Your search - £ - did not match any documents.

'开发者_JAVA百科£' must be a part of some font, any special reason that its not considered by Google ?

EDIT:

Even SO doesn't give any results...

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It's not impossible, but symbols are usually excluded from the haystack pool since the words are usually far more important to users.