Perhaps you should try some spelling variations:
visualization major » visualization maps, visualization matters, visualization method
major extension » major depression
array formats » array format, assay formats, array formulas
array arcing » array forming, array probing, array sharing
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 visualization major extension ((((array arcing) or (array formats))) or (array string))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information visualization major extension ((((array arcing) OR (array formats))) OR (array string)).
• Adding a wildcard symbol may retrieve word variants: information visualization major extension ((((array arcing) or (array formats))) or (array string))*.