Perhaps you should try some spelling variations:
interaction concave » interaction concept, interaction cognitive, interaction container
concave programming » convex programming, cone programming, concepts programming
using microarray » using microarrays, dna microarray, cdna microarray
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: interaction concave programming using microarray chips~.
• Adding a wildcard symbol may retrieve word variants: interaction concave programming using microarray chips*.