Perhaps you should try some spelling variations:
"coder coder estimation by programming" » "coder model estimation by programming" (Expand search), "coder power estimation by programming" (Expand search), "coder order estimation by programming" (Expand search), "coder coder estimation by reprogramming" (Expand search), "coder coder estimation _ programming" (Expand search), "coder coder estimation c programming" (Expand search), "coder coder estimation of programming" (Expand search), "coder coder estimation in programming" (Expand search), "coder decoder estimation by programming" (Expand search), "code code estimation by programming" (Expand search), "decoder codec estimation by programming" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder estimation by programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder estimation by programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder estimation by programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder estimation by programming") OR ("on python python python programming"))*.