Perhaps you should try some spelling variations:
"critical racionalismo" » "critica racionalismo", "critico racionalismo", "criticos racionalismo", "critical nacionalismo"
"critical regionalism" » "critica regionalism", "critico regionalism", "criticos regionalism", "critical regionalismo", "critical regionales", "critical rationalism"
"criticas rationality" » "critica rationality", "criticos rationality", "critico rationality"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("critical racionalismo") OR ("critical regionalism"))) OR ("criticas rationality"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"critical racionalismo\") OR (\"critical regionalism\"))) OR (\"criticas rationality\"))".
• Removing quotes may allow a broader search: (((( critical racionalismo ) OR ( critical regionalism ))) OR ( criticas rationality )).
• Adding a wildcard symbol may retrieve word variants: (((("critical racionalismo") OR ("critical regionalism"))) OR ("criticas rationality"))*.