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