Perhaps you should try some spelling variations:
"coder optimization methods testing problem" » "coder optimization model testing problem" (Expand search), "code optimization methods testing problem" (Expand search), "modern optimization methods testing problem" (Expand search), "powder optimization methods testing problem" (Expand search), "coder optimization methods using problem" (Expand search), "coder optimization methods nesting problem" (Expand search), "coder optimization methods nesting problems" (Expand search), "coder optimization methods teaching 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.

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