Perhaps you should try some spelling variations:
"code code coverage microbial programa" » "code code forage microbial programa" (Expand search), "code code coverage microbial protease" (Expand search), "code code coverage microbial proteome" (Expand search), "code code coverage microisis programa" (Expand search), "code care coverage microbial programa" (Expand search), "code and coverage microbial programa" (Expand search), "code the coverage microbial programa" (Expand search), "code cdc coverage microbial programa" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("code code coverage microbial programa") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"code code coverage microbial programa\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( code code coverage microbial programa ) OR ( _ python python python programming ))*.