Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation 13 » propagation 1, propagation 3, propagation _
13 dimensional » 3 dimensional, 1 dimensional, 10 dimensional
array forming » array arcing, array fermi, array formats
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 propagation 13 dimensional ((((array forming) or (array format))) or (array string))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information propagation 13 dimensional ((((array forming) OR (array format))) OR (array string)).
• Adding a wildcard symbol may retrieve word variants: information propagation 13 dimensional ((((array forming) or (array format))) or (array string))*.