Perhaps you should try some spelling variations:
"factores politicos" » "actos politicos", "valores politicos", "factores biologicos"
"efectos politicos" » "efectos positivos", "aspectos politicos", "derechos politicos"
"factos politicos" » "actos politicos", "impactos politicos", "factores politico"
"factores criticos" » "factores critico", "factores critica", "factores critical"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("factores politicos") OR ((("factos politicos") OR ("efectos politicos"))))) OR ((("actores politicos") OR ("factores criticos"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"factores politicos\") or (((\"factos politicos\") OR (\"efectos politicos\"))))) or (((\"actores politicos\") or (\"factores criticos\"))))~".
• Removing quotes may allow a broader search: (((( factores politicos ) or ((( factos politicos ) OR ( efectos politicos ))))) or ((( actores politicos ) or ( factores criticos ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("factores politicos") or ((("factos politicos") OR ("efectos politicos"))))) or ((("actores politicos") or ("factores criticos"))))*.

One or more facet filters have been applied to this search. If you remove filters, you may retrieve more results. Remove all filters from this search.