Perhaps you should try some spelling variations:
information section » information collection, information education, information security
methods extending » networks extending, methods finding, methods enhancing
section methods » sections methods, section method, selection methods
array sharing » array string, arrays bearing, array imaging
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 section methods extending ((((array arcing) or (array sharing))) or (array format))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information section methods extending ((((array arcing) OR (array sharing))) OR (array format)).
• Adding a wildcard symbol may retrieve word variants: information section methods extending ((((array arcing) or (array sharing))) or (array format))*.