Perhaps you should try some spelling variations:
"coder decoder problema linear programming" » "coder resolver problema linear programming" (Expand search), "coder decimo problema linear programming" (Expand search), "coder come problema linear programming" (Expand search), "coder decoder problemas lineares programming" (Expand search), "coder decoder programa linear programming" (Expand search), "coder decoder problema semilinear programming" (Expand search), "encoder decoder problema linear 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 decoder problema linear programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder problema linear programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder problema linear programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder problema linear programming") OR ("api python python python programming"))*.