Perhaps you should try some spelling variations:
"coder and coverage study objects" » "coder and coverage study object" (Expand search), "coder and coverage study effects" (Expand search), "coder and cover study objects" (Expand search), "code and coverage study objects" (Expand search), "codes and coverage study objects" (Expand search), "poder and coverage study objects" (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.

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