Perhaps you should try some spelling variations:
introduction development » introduction developing, reproductive development, product development
concurrent professional » concurrent processing, concerns professional, commitment professional
development concurrent » development current, development concept, development concerns
microarray profiling » microrna profiling
array profiling » array processing

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

• Performing a fuzzy search may retrieve terms with similar spellings: introduction development concurrent professional ((microarray profiling) or (array profiling))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: introduction development concurrent professional ((microarray profiling) OR (array profiling)).
• Adding a wildcard symbol may retrieve word variants: introduction development concurrent professional ((microarray profiling) or (array profiling))*.