Perhaps you should try some spelling variations:
"coder computation model using problem" » "modern computation model using problem" (Expand search), "core computation model using problem" (Expand search), "color computation model using problem" (Expand search), "coder computational model using problem" (Expand search), "coder competition model using problem" (Expand search), "coder imputation model using problem" (Expand search), "coder computation model housing problems" (Expand search), "coder computation model routing problem" (Expand search), "coder computation model cutting 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 computation model using problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder computation model using problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder computation model using problem") OR ("api python python python programming"))*.