Perhaps you should try some spelling variations:
"coder coder sliding block problem" » "coder order sliding block problem" (Expand search), "coder under sliding block problem" (Expand search), "coder closed sliding block problem" (Expand search), "coder coder building block problem" (Expand search), "coder coder sliding blocks problem" (Expand search), "coder coder sliding blocks problems" (Expand search), "coder coder sliding stock problem" (Expand search), "coder decoder sliding block problem" (Expand search), "code code sliding block problem" (Expand search), "decoder codec sliding block problem" (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 coder sliding block problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sliding block problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder sliding block problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder sliding block problem") OR ("api python python python programming"))*.