Perhaps you should try some spelling variations:
implementation programs » implementation programme, implementation progress, implementation problems
implementation program » implementation process, implementation plan, implementation part
function microbial » functional microbial, formation microbial, nutrition microbial
microbial https » microbial hosts, microbial hsp, microbiology https

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

• Performing a fuzzy search may retrieve terms with similar spellings: interfaces ((implementation programs) or (implementation program)) function microbial https~.
• If you are trying to use Boolean operators, they must be ALL CAPS: interfaces ((implementation programs) OR (implementation program)) function microbial https.
• Adding a wildcard symbol may retrieve word variants: interfaces ((implementation programs) or (implementation program)) function microbial https*.