Perhaps you should try some spelling variations:
statistical microarray » statistics microarrays
problems statistical » process statistical, processes statistical, prognosis statistical
integer programming » internet programming, linear programming
microarray cross » microarray probes, microarray chips, microarray post

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

• Performing a fuzzy search may retrieve terms with similar spellings: integer programming problems statistical microarray cross~.
• Adding a wildcard symbol may retrieve word variants: integer programming problems statistical microarray cross*.