Perhaps you should try some spelling variations:
"coder coder cation prediction problem" » "coder coder cation selection problem" (Expand search), "coder coder location prediction problem" (Expand search), "coder coder motion prediction problem" (Expand search), "coder coder action prediction problem" (Expand search), "coder code creation prediction problem" (Expand search), "coder decoder cation prediction problem" (Expand search), "code code cation prediction problem" (Expand search), "decoder codec cation prediction 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 cation prediction problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder cation prediction problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder cation prediction problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder cation prediction problem") OR ("on python python python programming"))*.