Perhaps you should try some spelling variations:
"factores politicos" » "factores criticos", "valores politicos", "factores biologicos", "ffactores criticos"
"aspectos politicos" » "aspectos juridicos", "aspectos eticos", "aspectos psicologicos"
"actores politicos" » "factores criticos"
"efectos politicos" » "efectos positivos", "derechos politicos", "efectos juridicos"
"actos politicos" » "ciclos politicos", "partidos politicos"

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

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