Perhaps you should try some spelling variations:
"advanced estimation using computer program" » "advanced automation using computer program" (Expand search), "advanced optimization using computer program" (Expand search), "advanced oxidation using computer program" (Expand search), "advanced estimation in computer program" (Expand search), "advanced estimation and computer program" (Expand search)
"using coding _ python programming" » "using coping _ python programming" (Expand search), "using coating _ python programming" (Expand search), "using cooking _ 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: (("advanced estimation using computer program") OR ("using coding _ python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced estimation using computer program\") OR (\"using coding _ python programming\"))".
• Removing quotes may allow a broader search: (( advanced estimation using computer program ) OR ( using coding _ python programming )).
• Adding a wildcard symbol may retrieve word variants: (("advanced estimation using computer program") OR ("using coding _ python programming"))*.