Perhaps you should try some spelling variations:
information aggregation » information integration, information propagation, information organization
aggregation help » aggregation felix, aggregation best, aggregation scheme
help dimension » new dimension, high dimension, de dimension
array imaging » arrays imaging, airway imaging, ray imaging
array string » array strong, arrays strings, array sharing

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

• Performing a fuzzy search may retrieve terms with similar spellings: information aggregation help dimension ((array imaging) or (array string))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information aggregation help dimension ((array imaging) OR (array string)).
• Adding a wildcard symbol may retrieve word variants: information aggregation help dimension ((array imaging) or (array string))*.