Perhaps you should try some spelling variations:
declarative programming » recursive programming
programming expression » reprogramming expression, programming expressive, programming extension
programs declarative » program declarative, programming declarative, programs relative
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: programs declarative programming expression microarray https~.
• Adding a wildcard symbol may retrieve word variants: programs declarative programming expression microarray https*.