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