Perhaps you should try some spelling variations:
"coder computational methods rostering problem" » "coder computational model rostering problem" (Expand search), "code computational methods rostering problem" (Expand search), "poder computacional methods rostering problem" (Expand search), "model computational methods rostering problem" (Expand search), "coder computational methods clustering problem" (Expand search), "coder computational methods considering problem" (Expand search), "coder computational methods comparing problem" (Expand search), "coder computational methods routing problem" (Expand search), "coder computational methods covering 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder computational methods rostering problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder computational methods rostering problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder computational methods rostering problem ) OR ( api python python python programming ))*.