Perhaps you should try some spelling variations:
"advanced simulation and computer program" » "advanced modulation and computer program" (Expand search), "advanced calculation and computer program" (Expand search), "advanced simulation _ computer program" (Expand search)
"advanced simulation study compete program" » "advanced modulation study compete program" (Expand search), "advanced calculation study compete program" (Expand search), "advanced simulation study compete programme" (Expand search), "advanced simulation study computer programs" (Expand search), "advanced simulation study company program" (Expand search), "advanced simulation study complexes program" (Expand search), "advanced simulation study compared program" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced simulation and computer program\") OR (\"advanced simulation study compete program\"))~".
• Removing quotes may allow a broader search: (( advanced simulation and computer program ) OR ( advanced simulation study compete program ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced simulation and computer program") OR ("advanced simulation study compete program"))*.