Perhaps you should try some spelling variations:
"coder coder training proposal problem" » "coder coder teaching proposal problem" (Expand search), "coder coder training protocol problem" (Expand search), "coder coder training protocols problem" (Expand search), "coder coder training propositional problem" (Expand search), "coder coder training proposal process" (Expand search), "coder power training proposal problem" (Expand search), "coder model training proposal problem" (Expand search), "coder under training proposal problem" (Expand search), "coder decoder training proposal problem" (Expand search), "code code training proposal problem" (Expand search), "decoder codec training proposal 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 training proposal problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder training proposal problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder training proposal problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder training proposal problem") OR ("on python python python programming"))*.