Checking conditions for string values always coming true

I want to check a string condition which is below

if (email.VENDOR_CODE != "0" || email.VENDOR_CODE != "00" || email.VENDOR_CODE != "000" || email.VENDOR_CODE != "0000" || email.VENDOR_CODE != "00000") {...}

and the value of email.VENDOR_CODE = 00;

it should return me false, but it is returning me as TRUE

why ? any specific reason, as both I am giving the values as string and checking the same datatype