Perhaps you should try some spelling variations:
"coder coder group testing problem" » "coder coder group nesting problem" (Expand search), "coder coder group nesting problems" (Expand search), "coder coder group teaching problem" (Expand search), "coder coder group using problem" (Expand search), "coder decoder group testing problem" (Expand search), "code code group testing problem" (Expand search), "decoder codec group testing problem" (Expand search), "coder cover groups testing problem" (Expand search), "coder model group testing problem" (Expand search), "coder power group testing 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 coder group testing problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder group testing problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder group testing problem") OR ("api python python python programming"))*.