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