Perhaps you should try some spelling variations:
problems implementation » problem implementation, process implementation, programs implementation
implementation progress » implementation process, implementation program, implementation problems
function microarray » function microarrays, functional microarray, function micrornas
progress function » progress fiction, process functions, problems function
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: problems implementation progress function microarray https~.
• Adding a wildcard symbol may retrieve word variants: problems implementation progress function microarray https*.