Perhaps you should try some spelling variations:
"coder optimization _ noncoding problem" » "code optimization _ noncoding problem" (Expand search), "modern optimization _ noncoding problem" (Expand search), "powder optimization _ noncoding problem" (Expand search), "coder optimization _ ongoing problem" (Expand search), "coder optimization _ loading problem" (Expand search), "coder optimization _ folding 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 _ noncoding problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder optimization _ noncoding problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder optimization _ noncoding problem") OR ("api python python python programming"))*.