Perhaps you should try some spelling variations:
28electronic resource » electronic resource, electronic resources, electric resource
3.2.4 apache » 3.6.4 apache, 3.2.4 cache, 14.4 apache
3.2 apache » 2.2 apache, 3.6 apache, 12 apache
3a apache » a apache, 33 apache, 3.6 apache
3 apache » _ apache
1 apache » _ apache

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 %((((3a apache) OR (((3.2 apache) OR (3.2.4 apache))))) OR (((3((3 apache) OR (1 apache))) OR (((3 apache) OR (1 apache)))))) software foundation%29%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22spark %28electronic resource %((((3a apache) or (((3.2 apache) OR (3.2.4 apache))))) or (((3((3 apache) or (1 apache))) or (((3 apache) or (1 apache)))))) software foundation%29%22".
• Adding a wildcard symbol may retrieve word variants: %22spark %28electronic resource %((((3a apache) or (((3.2 apache) OR (3.2.4 apache))))) or (((3((3 apache) or (1 apache))) or (((3 apache) or (1 apache)))))) software foundation%29%22*.