Perhaps you should try some spelling variations:
problem complementarity » problems complementary, hole complementarity, romer complementarity
function microarray » function microarrays, functional microarray, function micrornas
problems function » problems functions, problems fiction, problem functional
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: problem complementarity problems function microarray https~.
• Adding a wildcard symbol may retrieve word variants: problem complementarity problems function microarray https*.