Perhaps you should try some spelling variations:
22national science » national science, thenational science, citational science
rational science » national science, traditional science, rational defence
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: %((22national science) OR (((rational science) OR (regional science)))) foundation%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22national science) or (((rational science) OR (regional science)))) foundation%22".
• Adding a wildcard symbol may retrieve word variants: %((22national science) or (((rational science) OR (regional science)))) foundation%22*.