Perhaps you should try some spelling variations:
"coder application _ coding program" » "code application _ coding program" (Expand search), "codes application _ coding program" (Expand search), "copper application _ coding program" (Expand search), "coder application _ cloning program" (Expand search), "coder application _ loading program" (Expand search), "coder application _ cooling programs" (Expand search)
"coverage estimation python python programming" » "coverage estimation portion python programming" (Expand search), "coverage estimation method python programming" (Expand search), "coverage animation python python programming" (Expand search), "coverage estimation pythons python programming" (Expand search), "coverage estimation piton python programming" (Expand search), "coverage estimation pitons 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 application _ coding program") OR ("coverage estimation python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder application _ coding program\") OR (\"coverage estimation python python programming\"))*".
• Removing quotes may allow a broader search: (( coder application _ coding program ) OR ( coverage estimation python python programming ))*.