Perhaps you should try some spelling variations:
functional microrna » functional microbial, functional micro
interface computer » interfaces computer, interactive computer, internet computer
program functional » programs functional, program functionality, program national
microrna https » microrna snps, microarrays https, microrna shuttle

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

• Performing a fuzzy search may retrieve terms with similar spellings: interface computer program functional microrna https~.
• Adding a wildcard symbol may retrieve word variants: interface computer program functional microrna https*.