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