Perhaps you should try some spelling variations:
"coder code coverage objective functions" » "coder code coverage objective function" (Expand search), "coder code coverage executive functions" (Expand search), "coder code convergence objective functions" (Expand search), "coder care coverage objective functions" (Expand search), "coder and coverage objective functions" (Expand search), "coder the coverage objective functions" (Expand search), "code code coverage objective functions" (Expand search), "modern code coverage objective functions" (Expand search), "color code coverage objective functions" (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 code coverage objective functions\") OR (\"_ python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code coverage objective functions ) OR ( _ python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code coverage objective functions") OR ("_ python python python programming"))*.