Perhaps you should try some spelling variations:
programming partial » programming particle, programming practical, programming part
reference python » reference method, reference author, reference edition
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: reference python programming partial ((microarray chips) OR (microarray cross))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "reference python programming partial ((microarray chips) OR (microarray cross))".
• Adding a wildcard symbol may retrieve word variants: reference python programming partial ((microarray chips) OR (microarray cross))*.