Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation method » propagation methods
method extension » method extensions, method extending, metamodel extension
array sharing » arrays bearing, array imaging, way sharing
array string » array strong, arrays strings, array forming
array arcing » array forming, array probing, array using

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 method extension ((((array string) or (array arcing))) or (array sharing))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information propagation method extension ((((array string) OR (array arcing))) OR (array sharing)).
• Adding a wildcard symbol may retrieve word variants: information propagation method extension ((((array string) or (array arcing))) or (array sharing))*.