Perhaps you should try some spelling variations:
"coder decoder fragile stacks problem" » "coder decoder fragile states problem" (Expand search), "coder decoder fragiles states problem" (Expand search), "coder decoder fragile state problem" (Expand search), "coder decoder fragile stokes problem" (Expand search), "coder decoder fragile start problem" (Expand search), "encoder decoder fragile stacks 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)

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