Perhaps you should try some spelling variations:
"coder and objective partitioning problem" » "coder and additive partitioning problem" (Expand search), "coder and aditive partitioning problem" (Expand search), "coder and subjective partitioning problem" (Expand search), "coder and object partitioning problem" (Expand search), "coder of objective partitioning problem" (Expand search), "code and objective partitioning problem" (Expand search), "codes and objective partitioning problem" (Expand search), "poder and objective partitioning 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 and objective partitioning problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder and objective partitioning problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder and objective partitioning problem") OR ("api python python python programming"))*.