Perhaps you should try some spelling variations:
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python python python programming" (Expand search)
"coder and coverage in drone" » "coder and cover in drone" (Expand search), "coder and coverage of drone" (Expand search), "code and coverage in drone" (Expand search), "codes and coverage in drone" (Expand search), "poder and coverage in drone" (Expand search), "coder and coverage in drones" (Expand search), "coder and coverage and drone" (Expand search), "coder and coverage _ drone" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and coverage in drone\") OR (\"in python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder and coverage in drone ) OR ( in python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder and coverage in drone") OR ("in python python python programming"))*.