Perhaps you should try some spelling variations:
introduction current » introduction case
current design » current density
array probing » arrays probing, assay probing, array profiling
array arcing » array forming, array sharing, array using
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: introduction introduction current design ((((array arcing) OR (array probing))) or (array string))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: introduction introduction current design ((((array arcing) OR (array probing))) OR (array string)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "introduction introduction current design ((((array arcing) OR (array probing))) or (array string))".
• Adding a wildcard symbol may retrieve word variants: introduction introduction current design ((((array arcing) OR (array probing))) or (array string))*.