Perhaps you should try some spelling variations:
integer programming » internet programming, linear programming
function microarray » function microarrays, functional microarray, function micrornas
problems function » problems functions, problems fiction, problem functional
integer programs » linear programs
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: ((integer programs) OR (integer programming)) problems function microarray chips~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((integer programs) OR (integer programming)) problems function microarray chips".
• Adding a wildcard symbol may retrieve word variants: ((integer programs) OR (integer programming)) problems function microarray chips*.