Perhaps you should try some spelling variations:
functionality microarray » functional microarray, function microarrays, functional microrna
compositional program » composition programs, compositional problems, compositional process
computational program » computational problem, computational problems, combinational programs
microarray chips » microarray chip, microarrays chip, microarray cross

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

• Performing a fuzzy search may retrieve terms with similar spellings: encoding ((compositional program) OR (computational program)) functionality microarray chips~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "encoding ((compositional program) OR (computational program)) functionality microarray chips".
• Adding a wildcard symbol may retrieve word variants: encoding ((compositional program) OR (computational program)) functionality microarray chips*.