Perhaps you should try some spelling variations:
integration concurrent » integration concurrency, integration current, integration concept
concurrent programming » constraint programming, concurrent programs
programming directed » programming undirected, programming direct, programming directives
directed microarray » structured microarray, increased microarray
microarray https » microarrays https, microarray chips, microscopy https

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

• Performing a fuzzy search may retrieve terms with similar spellings: integration concurrent programming directed microarray https~.
• Adding a wildcard symbol may retrieve word variants: integration concurrent programming directed microarray https*.