Perhaps you should try some spelling variations:
"path una formulacion" » "path la formulacion", "path de formulacion", "path su formulacion", "pat una formulacion"
"paths y formulacion" » "paths la formulacion", "paths de formulacion", "paths y formacion", "paths _ formulacion", "pats y formulacion"
"pates y formulacion" » "pates la formulacion", "pates de formulacion", "pates y formacion", "partes y formulacion", "pilates y formulacion"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("path una formulacion") OR ((("paths y formulacion") OR ("pates y formulacion"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"path una formulacion\") OR (((\"paths y formulacion\") OR (\"pates y formulacion\"))))*".
• Removing quotes may allow a broader search: (( path una formulacion ) OR ((( paths y formulacion ) OR ( pates y formulacion ))))*.