Perhaps you should try some spelling variations:
"coder coding string theory presentation" » "coder coding string theory representation" (Expand search), "coder coding string there presentation" (Expand search), "coder coding string thecoma presentation" (Expand search), "coder coding using theory presentation" (Expand search), "coder sewing string theory presentation" (Expand search), "coder comparing string theory presentation" (Expand search), "coder coding nursing theory presentation" (Expand search), "modern coding string theory presentation" (Expand search), "color coding string theory presentation" (Expand search), "odor coding string theory presentation" (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), "rpa python 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 coding string theory presentation") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding string theory presentation\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding string theory presentation ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding string theory presentation") OR ("api python python python programming"))*.