Perhaps you should try some spelling variations:
"coder decoder python c programming" » "encoder decoder python c programming" (Expand search), "coder decoder python _ programming" (Expand search), "coder decoder python cone programming" (Expand search), "coder decoder python and programming" (Expand search)
"spi api python python programming" » "spi api pythons python programming" (Expand search), "spi api piton python programming" (Expand search), "spi api pitons python programming" (Expand search), "spi rpa python python programming" (Expand search), "spi manim python python programming" (Expand search), "api api 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 python c programming") OR ("spi api python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder python c programming\") OR (\"spi api python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder python c programming ) OR ( spi api python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder python c programming") OR ("spi api python python programming"))*.