Perhaps you should try some spelling variations:
structures microarray » structure microarray, structured microarray, studies microarray
program structures » program structure, protein structures
interface methods » internal methods, interval methods, interference methods
microarray chips » microarray chip, microarrays chip, microarray cross
methods program » methods programmed, methods problem, metrics program

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

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