Perhaps you should try some spelling variations:
"factores politicos" » "actores politicos", "factores biologicos", "factores climaticos"
"valores politicos" » "actores politicos", "valores eticos"
"efectos politicos" » "aspectos politicos", "derechos politicos", "efectos juridicos"
"actos politicos" » "actores politicos", "aspectos politicos", "ciclos politicos"
"factores criticos" » "factores critico", "factores critica", "factores critical"

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