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