"where LANGUAGE = 'English' AND LANGUAGE= 'Italiano'" will never return any records because no record can have a language of BOTH English and Italiano.
If you can, I'd suggest changing your table to this:
NO |ENGLISH | ITALIANO
1 | Enter | Entrano
2 | Exit | Escono
Then the query would be easy to write.
If you can't change the table, the only thing I can think of would be to create two temporary tables, one containing Italian words and the other containing English words and then join them on the field, 'NO'.
The PHP code looks like it should work.
HTH,
Beth