Perhaps you should try some spelling variations:
"coder coder sampling activity program" » "coder coder calling activity program" (Expand search), "coder coder damaging activity program" (Expand search), "coder coder pumping activity program" (Expand search), "coder under sampling activity program" (Expand search), "coder over sampling activity program" (Expand search), "coder core sampling activity program" (Expand search), "coder decoder sampling activity program" (Expand search), "code code sampling activity program" (Expand search), "decoder codec sampling activity program" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ 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 coder sampling activity program") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sampling activity program\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder sampling activity program ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder sampling activity program") OR ("on python python python programming"))*.