Perhaps you should try some spelling variations:
function computational » functions computational, functional computational, function computation
complexity functions » complex functions, complexity conceptions, complexity bisections
microarray profiling » microrna profiling
array string » array strong, arrays strings, array sharing

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: function computational complexity functions ((microarray profiling) OR (array string))~.
• Adding a wildcard symbol may retrieve word variants: function computational complexity functions ((microarray profiling) or (array string))*.