Perhaps you should try some spelling variations:
interaction structures » interactions structures, interactions structure, interactive structures
structures program » structures programs, structured program, structured programs
function micrornas » function microarrays, functional microrna, function microbial
program function » programme function, programs functional, program foundation
micrornas chips » microarray chips

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

• Performing a fuzzy search may retrieve terms with similar spellings: interaction structures program function micrornas chips~.
• Adding a wildcard symbol may retrieve word variants: interaction structures program function micrornas chips*.