Perhaps you should try some spelling variations:
"coder decoder using frequency pattern" » "coder decoder using frequent pattern" (Expand search), "coder decoder using frquency patterns" (Expand search), "coder decoder using frequent patterns" (Expand search), "coder decoder single frequency pattern" (Expand search), "coder decoder feeding frequency pattern" (Expand search), "encoder decoder using frequency pattern" (Expand search), "coder disorder using frequency pattern" (Expand search), "coder decoding using frequency pattern" (Expand search), "coder cover using frequency pattern" (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 using frequency pattern") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder using frequency pattern\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder using frequency pattern ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder using frequency pattern") OR ("api python python python programming"))*.