Perhaps you should try some spelling variations:
"coder decoder array three problems" » "coder decoder array the problems" (Expand search), "coder decoder array tree problem" (Expand search), "coder decoder array type problems" (Expand search), "encoder decoder array three problems" (Expand search), "coder diode array three problems" (Expand search), "coder decoder farra three problems" (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 array three problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder array three problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder array three problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder array three problems") OR ("api python python python programming"))*.