Perhaps you should try some spelling variations:
por medico » por medio, por medios, poor medical
por mexico » poor mexico, power mexico, poder mexico
yo medico » yo medito, y medico, uso medico
de edgar » poe edgar, de edad
"y pedro, ou le edgar." » "y pedro, ou poe edgar.", "y pedro, ou y edgar.", "y pedro, ou _ edgar.", "y pedro, ou la edgar.", "y pedro, ou de edgar."
tu de » tu me, ou de, du de

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("((((yo medico) OR (por medico))) or (por mexico)), tu de edgar.") or ("y pedro, ou le edgar."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("((((yo medico) OR (por medico))) or (por mexico)), tu de edgar.") OR ("y pedro, ou le edgar.")).
• Removing quotes may allow a broader search: (( ((((yo medico) OR (por medico))) or (por mexico)), tu de edgar. ) or ( y pedro, ou le edgar. )).
• Adding a wildcard symbol may retrieve word variants: (("((((yo medico) OR (por medico))) or (por mexico)), tu de edgar.") or ("y pedro, ou le edgar."))*.