Perhaps you should try some spelling variations:
student expression » student aggression, htert expression, stress expression
information set » information sheet, information asset, information sheets
array probing » arrays probing, assay probing, array profiling
array string » array strong, arrays strings, array sharing
set student » set student's, best student, tvet student

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: information set student expression ((array string) or (((array format) or (array probing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information set student expression ((array string) OR (((array format) OR (array probing)))).
• Adding a wildcard symbol may retrieve word variants: information set student expression ((array string) or (((array format) or (array probing))))*.