Perhaps you should try some spelling variations:
suppression microarray » expression microarray, suspension microarray, expression microarrays
compositional program » composition programs, computational program, compositional problems
using compositional » using composition, using computational, using conditional
program suppression » program compression, process suppression
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: using compositional program suppression microarray chips~.
• Adding a wildcard symbol may retrieve word variants: using compositional program suppression microarray chips*.