Perhaps you should try some spelling variations:
programming exercises » programming addresses
exercises microarray » series microarray, experiments microarray
programming janet » programming net, programming jay, programming genetic
programming java » programming jay, programming graph, program java
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: ((programming java) OR (programming janet)) programming exercises microarray chips~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((programming java) OR (programming janet)) programming exercises microarray chips".
• Adding a wildcard symbol may retrieve word variants: ((programming java) OR (programming janet)) programming exercises microarray chips*.