Perhaps you should try some spelling variations:
imperative programming » declarative programming, reactive programming
programming programmed » processing programmed
programmed structures » program structures, programming structured, program structure
structures microarray » structure microarray, structured microarray, studies microarray
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: imperative programming programmed structures microarray chips~.
• Adding a wildcard symbol may retrieve word variants: imperative programming programmed structures microarray chips*.