Perhaps you should try some spelling variations:
"coder estimating _ coding problem" » "model estimating _ coding problem" (Expand search), "older estimating _ coding problem" (Expand search), "cost estimating _ coding problem" (Expand search), "coder estimating _ coding problems" (Expand search), "coder estimating _ coping problem" (Expand search), "coder estimating _ 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 estimating _ coding problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder estimating _ coding problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder estimating _ coding problem") OR ("api python python python programming"))*.