Php PDO multiple query

Hi E's,
I have this two querys:

$consulta = $pdo->query("SELECT palavra FROM config_palavras_portuguesas where soundex(palavra) = soundex('rabbaco')");

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$consulta = $pdo->query("SELECT palavra FROM config_palavras_portuguesas where soundex(palavra) = soundex('yabbaco')");

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The different between both query is the word "rabbaco" and "yabbaco".
How I can put this two querys in one?

The best regards,
JC