Perhaps you should try some spelling variations:
"coder coder patient learning effect" » "coder coder patients learning effect" (Expand search), "coder coder patients learnings effect" (Expand search), "coder coder latent learning effect" (Expand search), "coder coder patient learning object" (Expand search), "coder coder patient learning project" (Expand search), "coder border patient learning effect" (Expand search), "coder older patient learning effect" (Expand search), "coder elder patient learning effect" (Expand search), "coder decoder patient learning effect" (Expand search), "code code patient learning effect" (Expand search), "decoder codec patient learning effect" (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 patient learning effect") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder patient learning effect\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder patient learning effect ) OR ( _ python python python programming ))*.