Perhaps you should try some spelling variations:
"coder coder causative set problem" » "coder order accusative set problem" (Expand search), "coder coder causative agent problem" (Expand search), "coder coder causative event problem" (Expand search), "coder coder causative gene problem" (Expand search), "coder decoder causative set problem" (Expand search), "code code causative set problem" (Expand search), "decoder codec causative set problem" (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 causative set problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder causative set problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder causative set problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder causative set problem") OR ("on python python python programming"))*.