Perhaps you should try some spelling variations:
information source » information sources, information resource, information resources
teaching dimension » learning dimension, teaching design, teaching decision
source teaching » source tracking, course teaching, core teaching
array string » array strong, arrays strings, array sharing
array fermi » array forming

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

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