Perhaps you should try some spelling variations:
"coder coder computer conduction problem" » "coder coder computer construction problem" (Expand search), "coder coder computer education problem" (Expand search), "coder coder computer cognition problem" (Expand search), "coder coder computer collection problem" (Expand search), "coder coder computer prediction problem" (Expand search), "coder model computer conduction problem" (Expand search), "coder node computer conduction problem" (Expand search), "coder color computer conduction problem" (Expand search), "coder decoder computer conduction problem" (Expand search), "code code computer conduction problem" (Expand search), "decoder codec computer conduction 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 computer conduction problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder computer conduction problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder computer conduction problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder computer conduction problem") OR ("on python python python programming"))*.