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 ldpc source coding" » "coder coding ldpc source routing" (Expand search), "coder coding ldpc source code" (Expand search), "coder coding ldpc source codes" (Expand search), "modern coding ldpc source coding" (Expand search), "color coding ldpc source coding" (Expand search), "odor coding ldpc source coding" (Expand search), "coder coding lpc source coding" (Expand search), "coder codigo ldpc source coding" (Expand search), "coder codigos ldpc source coding" (Expand search), "coder coding dc source coding" (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 ldpc source coding") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding ldpc source coding\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding ldpc source coding ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding ldpc source coding") OR ("api python python python programming"))*.