Perhaps you should try some spelling variations:
"using computational in computer program" » "and computational in computer program" (Expand search), "using computational and computer program" (Expand search), "using computational _ computer program" (Expand search), "using computational 3d computer program" (Expand search)
"mining tools python python programming" » "mining tools pythons python programming" (Expand search), "mining tools piton python programming" (Expand search), "mining tools pitons python programming" (Expand search), "mining tool python python programming" (Expand search), "mining to python python programming" (Expand search), "mining tools person 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: (("using computational in computer program") OR ("mining tools python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational in computer program\") OR (\"mining tools python python programming\"))".
• Removing quotes may allow a broader search: (( using computational in computer program ) OR ( mining tools python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computational in computer program") OR ("mining tools python python programming"))*.