Perhaps you should try some spelling variations:
"edicion e campos perez la paz ;" » "edicion e campo perez la paz ;", "edicion e campos perales la paz ;", "edicion e campos mendez la paz ;", "edicion de campos perez la paz ;", "edicion en campos perez la paz ;", "medicion e campos perez la paz ;", "edicion y campos perez la paz ;"
"medicina de campo esther alba paez ;" » "medicina de campo ester alba paez ;", "medicina de campo esther barbe paez ;", "medicina de campo esther maria paez ;", "medicina de campo esther alba juez ;", "medicina de cambio esther alba paez ;", "medicina el campo esther alba paez ;"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("edicion e campos perez la paz ;") or ("medicina de campo esther alba paez ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("edicion e campos perez la paz ;") OR ("medicina de campo esther alba paez ;")).
• Removing quotes may allow a broader search: (( edicion e campos perez la paz ; ) or ( medicina de campo esther alba paez ; )).
• Adding a wildcard symbol may retrieve word variants: (("edicion e campos perez la paz ;") or ("medicina de campo esther alba paez ;"))*.