Perhaps you should try some spelling variations:
"factores politicos" » "actores politicos", "factores criticos", "factores biologicos"
"fvalores politicos" » "actores politicos", "factores politico", "factores politicos", "fvalores eticos"
"valores politicos" » "actores politicos", "valores eticos"
"actos politicos" » "actores politicos", "aspectos politicos", "efectos politicos"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("factores politicos") OR ("valores politicos"))) or ("fvalores politicos"))) or ("actos politicos"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("factores politicos") OR ("valores politicos"))) OR ("fvalores politicos"))) OR ("actos politicos")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"factores politicos\") OR (\"valores politicos\"))) or (\"fvalores politicos\"))) or (\"actos politicos\"))".
• Removing quotes may allow a broader search: (((((( factores politicos ) OR ( valores politicos ))) or ( fvalores politicos ))) or ( actos politicos )).
• Adding a wildcard symbol may retrieve word variants: (((((("factores politicos") OR ("valores politicos"))) or ("fvalores politicos"))) or ("actos politicos"))*.