Perhaps you should try some spelling variations:
modification programming » modification programmed, verification programming, specification programming
programming exploring » programming exploits, programme exploring, programming developing
microarray chips » microarray chip, microarrays chip, microarray rip
microarray cross » microarray probes, microarray post, microarray probe

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

• Performing a fuzzy search may retrieve terms with similar spellings: surface modification programming exploring ((microarray chips) OR (microarray cross))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "surface modification programming exploring ((microarray chips) OR (microarray cross))".
• Adding a wildcard symbol may retrieve word variants: surface modification programming exploring ((microarray chips) OR (microarray cross))*.