Perhaps you should try some spelling variations:
"coder estimation python _ program" » "coder estimation portion _ program" (Expand search), "coder estimation method _ program" (Expand search), "coder animation python _ program" (Expand search), "model estimation python _ program" (Expand search), "power estimation python _ program" (Expand search), "color estimation python _ program" (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 estimation python _ program\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder estimation python _ program ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder estimation python _ program") OR ("api python python python programming"))*.