Поиск клиента по имени, адресу, контактному номеру в C# winfrom

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I try my code for name search it works but I don't know how to add more than one search query so anyone please help 

<pre lang="c#"> Command.CommandText = @"SELECT * FROM PersonalINFO  WHERE (FirstName = '" + Search.Text + "'  )";

Что я уже пробовал:

my searching query by only name is above how can I use Phone number or email address find people from my client database any one of this into search box 

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