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