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