Perhaps you should try some spelling variations:
implementation microarray » implementation maria, implementation michael, complementary microarray
program implementation » project implementation
microarray https » microarrays https, microarray chips, microscopy https
external python » external pathogen, external action, external persons
python program » python programs, action program, python programming

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

• Performing a fuzzy search may retrieve terms with similar spellings: external python program implementation microarray https~.
• Adding a wildcard symbol may retrieve word variants: external python program implementation microarray https*.