Perhaps you should try some spelling variations:
"coder coder between string problem" » "coder coder between strings problem" (Expand search), "coder coder between strong problem" (Expand search), "coder coder between spring problem" (Expand search), "coder coder between sizing problem" (Expand search), "coder coder between rostering problem" (Expand search), "coder coder between sharing problems" (Expand search), "coder code between string problem" (Expand search), "coder cover between string problem" (Expand search), "coder border between string problem" (Expand search), "coder decoder between string problem" (Expand search), "code code between string problem" (Expand search), "decoder codec between string problem" (Expand search)
"api pythons python python programming" » "api pitons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pythons piton python programming" (Expand search), "api pythons pitons python programming" (Expand search), "api pythons pytm python programming" (Expand search), "api 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 between string problem\") OR (\"api pythons python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder between string problem ) OR ( api pythons python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder between string problem") OR ("api pythons python python programming"))*.