Perhaps you should try some spelling variations:
programming function » programming functional, programming functionals, programme function
function microarray » function microarrays, functional microarray, function micrornas
https programming » types programming, sites programming, its programming
microarray https » microarrays https, microarray chips, microscopy https

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (microprogramming OR reprogramming) https programming function microarray https~.
• Adding a wildcard symbol may retrieve word variants: (microprogramming or reprogramming) https programming function microarray https*.