Perhaps you should try some spelling variations:
"coder coder perception of program" » "coder coders perceptions of program" (Expand search), "coder color perception of program" (Expand search), "coder odor perception of program" (Expand search), "coder decoder perception of program" (Expand search), "code code perception of program" (Expand search), "decoder codec perception of program" (Expand search), "coder coder perception of programs" (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 perception of program") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder perception of program\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder perception of program ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder perception of program") OR ("_ python python python programming"))*.