Perhaps you should try some spelling variations:
"coder _ python coding programming" » "coder _ python solving programming" (Expand search), "coder _ python cone programming" (Expand search), "coder _ python conic programming" (Expand search), "coder _ python codigo programming" (Expand search), "coder _ action coding programming" (Expand search), "coder _ python code programming" (Expand search)
"sampling from python python programming" » "sampling error python python programming" (Expand search), "samples from python python programming" (Expand search), "sample from python python programming" (Expand search), "sampling from pythons python programming" (Expand search), "sampling from piton python programming" (Expand search), "sampling from pitons python programming" (Expand search), "sampling from pathogen python programming" (Expand search), "sampling from anthony python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder _ python coding programming") OR ("sampling from python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ python coding programming\") OR (\"sampling from python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ python coding programming ) OR ( sampling from python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ python coding programming") OR ("sampling from python python programming"))*.