Perhaps you should try some spelling variations:
"homicidio en peticion OR una peticion " » "homicidio en peticion OR una particion " (Expand Search), "homicidio en peticion OR la peticion " (Expand Search), "homicidio en peticion OR una posicion " (Expand Search), "homicidio de peticion OR una peticion " (Expand Search), "homicidio la peticion OR una peticion " (Expand Search), "homicidio y peticion OR una peticion " (Expand Search), "homicidio en peticion OR unla peticion " (Expand Search), "homicidio en peticion OR unde peticion " (Expand Search), "homicidio en peticion OR un_ petition " (Expand Search)
"homicidio a peticion" » "homicidio y peticion" (Expand Search), "homicidio en peticion" (Expand Search), "homicidio de peticion" (Expand Search), "homicidio la peticion" (Expand Search), "homicidio _ petition" (Expand Search)

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: (("homicidio a peticion") OR ("homicidio ((en peticion) OR (una peticion))"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"homicidio a peticion\") OR (\"homicidio ((en peticion) OR (una peticion))\"))".
• Removing quotes may allow a broader search: (( homicidio a peticion ) OR ( homicidio ((en peticion) OR (una peticion)) )).
• Adding a wildcard symbol may retrieve word variants: (("homicidio a peticion") OR ("homicidio ((en peticion) OR (una peticion))"))*.