Perhaps you should try some spelling variations:
"factores politicos" » "actores politicos", "factores biologicos", "factores climaticos"
"valores politicos" » "actores politicos", "valores eticos"
"factores clinicos" » "factores clinico", "factores climaticos", "factores tecnicos"
"factores critica" » "factores clinico", "factor critico", "factores politico"
"actos politicos" » "actores politicos", "aspectos politicos", "efectos 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 ("actos politicos"))) or ("valores politicos"))) or ((("factores criticos") or ((("factores critica") OR ("factores clinicos"))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("factores politicos") OR ("actos politicos"))) OR ("valores politicos"))) OR ((("factores criticos") OR ((("factores critica") OR ("factores clinicos")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"factores politicos\") or (\"actos politicos\"))) or (\"valores politicos\"))) or (((\"factores criticos\") or (((\"factores critica\") OR (\"factores clinicos\"))))))".
• Removing quotes may allow a broader search: (((((( factores politicos ) or ( actos politicos ))) or ( valores politicos ))) or ((( factores criticos ) or ((( factores critica ) OR ( factores clinicos )))))).
• Adding a wildcard symbol may retrieve word variants: (((((("factores politicos") or ("actos politicos"))) or ("valores politicos"))) or ((("factores criticos") or ((("factores critica") OR ("factores clinicos"))))))*.

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.