Perhaps you should try some spelling variations:
"sliding mode python arduino programming" » "sliding mode python arduino programmable" (Expand search), "sliding mode python radio programming" (Expand search), "sliding mode python learning programming" (Expand search), "sliding mda python arduino programming" (Expand search), "sliding modulo python arduino programming" (Expand search), "sliding monty python arduino programming" (Expand search)
"python api python python programming" » "python api pythons python programming" (Expand search), "python api piton python programming" (Expand search), "python api pitons python programming" (Expand search), "python and python python programming" (Expand search), "python rpa python python programming" (Expand search), "python manim 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: (("sliding mode python arduino programming") OR ("python api python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sliding mode python arduino programming\") OR (\"python api python python programming\"))".
• Removing quotes may allow a broader search: (( sliding mode python arduino programming ) OR ( python api python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("sliding mode python arduino programming") OR ("python api python python programming"))*.