Perhaps you should try some spelling variations:
"coder coder material r programming" » "coder poder material r programming" (Expand search), "coder cover materials r programming" (Expand search), "coder powder material r programming" (Expand search), "coder coder material _ programming" (Expand search), "coder coder material c programming" (Expand search), "coder coder material pair programming" (Expand search), "coder decoder material r programming" (Expand search), "code code material r programming" (Expand search), "decoder codec material r programming" (Expand search), "coder coder material res programming" (Expand search), "coder coder material rgo programming" (Expand search), "coder coder material rsc 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 material r programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder material r programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder material r programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder material r programming") OR ("api python python python programming"))*.