Perhaps you should try some spelling variations:
"coder under sampling errors coverage" » "coder under sampling error coverage" (Expand search), "coder under sampling effort coverage" (Expand search), "coder under spelling errors coverage" (Expand search), "coder under sampling drops coverage" (Expand search), "coder under sampling crops coverage" (Expand search), "coder under sampling territory coverage" (Expand search), "coder under saline errors coverage" (Expand search), "coder and sampling errors coverage" (Expand search), "coder water sampling errors coverage" (Expand search), "code under sampling errors coverage" (Expand search), "cover under sampling errors coverage" (Expand search), "clover under sampling errors coverage" (Expand search)
"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)

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 under sampling errors coverage\") OR (\"in python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder under sampling errors coverage ) OR ( in python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder under sampling errors coverage") OR ("in python python python programming"))*.