Perhaps you should try some spelling variations:
functionality microarray » functional microarray, functional microrna
function microarrays » lectin microarrays, lectin microarray
programs procedures » program procedure, programs processes, programs proceedings
procedures programs » procedural programs, procedures problems, procedures process

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

• Performing a fuzzy search may retrieve terms with similar spellings: programs procedures programs ((functionality microarray) OR (function microarrays)) chips~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "programs procedures programs ((functionality microarray) OR (function microarrays)) chips".
• Adding a wildcard symbol may retrieve word variants: programs procedures programs ((functionality microarray) OR (function microarrays)) chips*.