Perhaps you should try some spelling variations:
"coder _ constraint algorithm based" » "coder _ constrained algorithms based" (Expand search), "coder _ constraints algoritmos based" (Expand search), "coder _ colorant algorithm based" (Expand search), "coder _ constraint algorithm and" (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 _ constraint algorithm based") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ constraint algorithm based\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ constraint algorithm based ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ constraint algorithm based") OR ("api python python python programming"))*.