Perhaps you should try some spelling variations:
"coder coder rank allocation problem" » "coder coder rank location problem" (Expand search), "coder coder banks allocation problem" (Expand search), "coder coder and allocation problem" (Expand search), "coder coder task allocation problem" (Expand search), "coder decoder rank allocation problem" (Expand search), "code code rank allocation problem" (Expand search), "decoder codec rank allocation 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 rank allocation problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder rank allocation problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder rank allocation problem") OR ("api python python python programming"))*.