Perhaps you should try some spelling variations:
21 organizations » 1 organizations, 21 organization, 25 organizations
11 organizations » 1.1 organizations, 11 organization, 1 organizations
2.6 institutions » 2.3 institutions, 2.2 institutions, 2.8 institutions
26 institutions » 16 institutions, 25 institutions, 2.3 institutions

Try widening your search to All Fields.

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: %22education %((21 organizations) OR (11 organizations)) %((26 institutions) OR (2.6 institutions))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22education %((21 organizations) or (11 organizations)) %((26 institutions) OR (2.6 institutions))%22".
• Adding a wildcard symbol may retrieve word variants: %22education %((21 organizations) or (11 organizations)) %((26 institutions) OR (2.6 institutions))%22*.