Perhaps you should try some spelling variations:
information channel » information channels, information changes, information change
teaching dimension » learning dimension, teaching design, teaching decision
channel teaching » change teaching, channel tracking, changes teaching
array string » array strong, arrays strings, array sharing
array arcing » array forming, array probing, 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 channel teaching dimension ((((array string) OR (array arcing))) OR (array format))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "information channel teaching dimension ((((array string) OR (array arcing))) OR (array format))".
• Adding a wildcard symbol may retrieve word variants: information channel teaching dimension ((((array string) OR (array arcing))) OR (array format))*.