Perhaps you should try some spelling variations:
compositional constrained » compositional constraints, competition constrained, computations constrained
functions compositional » functions composition, function composition, functions computational
constrained programming » constraint programming
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.

• Performing a fuzzy search may retrieve terms with similar spellings: functions compositional constrained programming ((array string) or (microarray profiling))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: functions compositional constrained programming ((array string) OR (microarray profiling)).
• Adding a wildcard symbol may retrieve word variants: functions compositional constrained programming ((array string) or (microarray profiling))*.