Perhaps you should try some spelling variations:
"advanced simulation _ computer program" » "advanced modulation _ computer program" (Expand search), "advanced calculation _ computer program" (Expand search)
"advanced simulation aided computer program" » "advanced modulation aided computer program" (Expand search), "advanced calculation aided computer program" (Expand search), "advanced simulation guided computer program" (Expand search), "advanced simulation video computer program" (Expand search), "advanced simulation and computer program" (Expand search), "advanced simulation based computer program" (Expand search), "advanced simulation audio computer program" (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 _ computer program") OR ("advanced simulation aided computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced simulation _ computer program\") OR (\"advanced simulation aided computer program\"))".
• Removing quotes may allow a broader search: (( advanced simulation _ computer program ) OR ( advanced simulation aided computer program )).
• Adding a wildcard symbol may retrieve word variants: (("advanced simulation _ computer program") OR ("advanced simulation aided computer program"))*.