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

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

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