Perhaps you should try some spelling variations:
"coder coder java rostering problem" » "coder coder java clustering problem" (Expand search), "coder coder java routing problem" (Expand search), "coder coder java covering problem" (Expand search), "coder decoder java rostering problem" (Expand search), "code code java rostering problem" (Expand search), "decoder codec java rostering problem" (Expand search), "coder codes java rostering problem" (Expand search), "coder xcode java rostering 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 java rostering problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder java rostering problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder java rostering problem") OR ("api python python python programming"))*.