Search for words with a Dash in Twitter API

How can I get the results for the phrase "E-Contact" In a normal twitter search it returns results with E-Contact but also results without the dash anything but

The same happens for a Williams-Sonoma search I tried using quotes and als开发者_JAVA技巧o replacing the dash with the URL encoded %2D but still no luck.

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I don't think you can. You will have to manually filter the search results on your side.