Perhaps you should try some spelling variations:
28electronic resource » electronic resource, electronic resources, electric resource
3.6 apache » 3.6.3 apache, 3.6.4 apache, 3.6.5 apache
s3 apache » 33 apache, 5.3 apache, bsd apache
13 apache » 1 apache, 10 apache, 11 apache
3 apache » _ apache, 1 apache

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: %22spark %28electronic resource %((3.6 apache) OR (((((s3 apache) OR (13 apache))) OR (3 apache)))) software foundation%29%22.
• Adding a wildcard symbol may retrieve word variants: %22spark %28electronic resource %((3.6 apache) or (((((s3 apache) or (13 apache))) or (3 apache)))) software foundation%29%22*.