Perhaps you should try some spelling variations:
examples microarray » samples microarray, sample microarray, simple microarray
program interface » program interfaces, programs interfaces, problem interface
interface program » interface programs, interfacing program, interface problem
program examples » from examples
microarray chips » microarray chip, microarrays chip, microarray cross

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

• Performing a fuzzy search may retrieve terms with similar spellings: program interface program examples microarray chips~.
• Adding a wildcard symbol may retrieve word variants: program interface program examples microarray chips*.