Perhaps you should try some spelling variations:
"coder approximation by loading problem" » "power approximation by loading problem" (Expand search), "order approximation by loading problem" (Expand search), "model approximation by loading problem" (Expand search), "coder approximation of loading problem" (Expand search), "coder approximation _ loading problem" (Expand search), "coder approximation to loading problem" (Expand search), "coder approximation by routing problem" (Expand search), "coder approximation by planning problem" (Expand search), "coder approximation bud loading problem" (Expand search), "coder approximation bh4 loading problem" (Expand search), "coder approximation bit loading 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 approximation by loading problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder approximation by loading problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder approximation by loading problem") OR ("api python python python programming"))*.