Perhaps you should try some spelling variations:
"coder coder _ sampling process" » "coder coder _ stamping process" (Expand search), "coder coder _ labeling process" (Expand search), "coder coder _ selling process" (Expand search), "coder decoder _ sampling process" (Expand search), "code code _ sampling process" (Expand search), "decoder codec _ sampling process" (Expand search)
"pi with python python programming" » "pi with pythons python programming" (Expand search), "pi with piton python programming" (Expand search), "pi with pitons python programming" (Expand search), "pci with python python programming" (Expand search), "ii with python python programming" (Expand search), "i with 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 coder _ sampling process\") OR (\"pi with python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder _ sampling process ) OR ( pi with python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ sampling process") OR ("pi with python python programming"))*.