Perhaps you should try some spelling variations:
"decoder codecs patterns and problems" » "decoder models patterns and problems" (Expand search), "decoder model patterns and problems" (Expand search), "decoder coding patterns and problems" (Expand search), "decoder codecs patterns in problems" (Expand search), "decoder codecs patterns and 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"decoder codecs patterns and problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( decoder codecs patterns and problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("decoder codecs patterns and problems") OR ("api python python python programming"))*.