Perhaps you should try some spelling variations:
"critical rationalism" » "critica rationalism", "criticas rationalism", "criticos rationalism", "critical nationalism", "critical racionalismo", "critical nacionalismo"
"critical regionalism" » "critica regionalism", "criticas regionalism", "criticos regionalism", "critical regionalismo", "critical regionales", "critical racionalismo"
"critico rationality" » "critica 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 rationalism") OR ("critical regionalism"))) OR ("critico rationality"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"critical rationalism\") OR (\"critical regionalism\"))) OR (\"critico rationality\"))".
• Removing quotes may allow a broader search: (((( critical rationalism ) OR ( critical regionalism ))) OR ( critico rationality )).
• Adding a wildcard symbol may retrieve word variants: (((("critical rationalism") OR ("critical regionalism"))) OR ("critico rationality"))*.