Perhaps you should try some spelling variations:
activation microarray » annotation microarray, applications microarray, generation microarray
variogram activation » variogram estimation, various activation
programme function » programming function, programme action, programs functional
function variogram » function program
microarray chip » microarray cgh, microarrays case, microarrays cell

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

• Performing a fuzzy search may retrieve terms with similar spellings: programme function variogram activation microarray chip~.
• Adding a wildcard symbol may retrieve word variants: programme function variogram activation microarray chip*.