Perhaps you should try some spelling variations:
"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)
"coder coding coding ldpc doi" » "coder coding decoding ldpc doi" (Expand search), "coder coding using ldpc doi" (Expand search), "coder coding canine ldpc doi" (Expand search), "modern coding coding ldpc doi" (Expand search), "color coding coding ldpc doi" (Expand search), "odor coding coding ldpc doi" (Expand search), "coder coding coding lpc doi" (Expand search), "coder coding codigo ldpc doi" (Expand search), "coder coding codigos ldpc doi" (Expand search), "coder coding coding ldpc low" (Expand search), "coder coding coding cpc doi" (Expand search), "coder coding coding ldpc dvb" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding coding ldpc doi\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding coding ldpc doi ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding coding ldpc doi") OR ("api python python python programming"))*.