Perhaps you should try some spelling variations:
"coder precoder source concurrent programming" » "coder precoder source constraint programming" (Expand search), "coder precoder your concurrent programming" (Expand search), "coder precoder soft concurrent programming" (Expand search), "coder precoder or concurrent programming" (Expand search), "coder decoder source concurrent 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), "rpa python python python programming" (Expand search), "manim 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 precoder source concurrent programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder source concurrent programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder source concurrent programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder source concurrent programming") OR ("api python python python programming"))*.