Perhaps you should try some spelling variations:
"coder coder avoiding fixed effect" » "coder coda avoiding fixed effect" (Expand search), "coder coder avoiding fixed effects" (Expand search), "coder coder avoiding mixed effects" (Expand search), "coder decoder avoiding fixed effect" (Expand search), "code code avoiding fixed effect" (Expand search), "decoder codec avoiding fixed effect" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python 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 avoiding fixed effect") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder avoiding fixed effect\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder avoiding fixed effect ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder avoiding fixed effect") OR ("in python python python programming"))*.