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