Perhaps you should try some spelling variations:
irregional science » irrational science, regional escience, regional sciences
citational science » national science, rational science, irrational science
regional science » national science, regional scale

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

• If you are trying to use Boolean operators, they must be ALL CAPS: %((((irregional science) OR (regional science))) OR (citational science)) foundation%22.
• Adding a wildcard symbol may retrieve word variants: %((((irregional science) or (regional science))) or (citational science)) foundation%22*.