Perhaps you should try some spelling variations:
"coder coder maturation _ programming" » "coder lower maturation _ programming" (Expand search), "coder coffee maturation _ programming" (Expand search), "coder gender maturation _ programming" (Expand search), "coder decoder maturation _ programming" (Expand search), "code code maturation _ programming" (Expand search), "decoder codec maturation _ programming" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api 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 maturation _ programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder maturation _ programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder maturation _ programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder maturation _ programming") OR ("api python python python programming"))*.