Perhaps you should try some spelling variations:
"coder estimation from coding problem" » "model estimation from coding problem" (Expand search), "power estimation from coding problem" (Expand search), "color estimation from coding problem" (Expand search), "coder estimation of coding problem" (Expand search), "coder estimation from coding problems" (Expand search), "coder estimation from coping problem" (Expand search), "coder estimation from loading problem" (Expand search), "coder estimation from decoding problem" (Expand search), "coder estimation from cooking problem" (Expand search), "coder estimation from codium problem" (Expand search)
"api pythons python python programming" » "api pitons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pythons piton python programming" (Expand search), "api pythons pitons python programming" (Expand search), "api pythons pytm python programming" (Expand search), "api 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 from coding problem\") OR (\"api pythons python python programming\"))~".
• Removing quotes may allow a broader search: (( coder estimation from coding problem ) OR ( api pythons python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder estimation from coding problem") OR ("api pythons python python programming"))*.