Perhaps you should try some spelling variations:
"coder coder complexity training proposal" » "coder coder complex training proposal" (Expand search), "coder coder complexity thinking proposal" (Expand search), "coder coder complexity teaching proposal" (Expand search), "coder coder complexity training protocol" (Expand search), "coder coder complexity training protocols" (Expand search), "coder code complexity training proposal" (Expand search), "coder model complexity training proposal" (Expand search), "coder lower complexity training proposal" (Expand search), "coder decoder complexity training proposal" (Expand search), "code code complexity training proposal" (Expand search), "decoder codec complexity training proposal" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python 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 complexity training proposal") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder complexity training proposal\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder complexity training proposal ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder complexity training proposal") OR ("_ python python python programming"))*.