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