Perhaps you should try some spelling variations:
"advanced simulation are computer program" » "advanced modulation are computer program" (Expand search), "advanced calculation are computer program" (Expand search), "advanced stimulation are computer program" (Expand search), "advanced simulation area computer program" (Expand search), "advanced simulation rare computer program" (Expand search), "advanced simulation are computed program" (Expand search), "advanced simulation arena computer program" (Expand search), "advanced simulation large computer program" (Expand search)
"advanced simulation and computational program" » "advanced modulation and computational program" (Expand search), "advanced calculation and computational program" (Expand search), "advanced simulation _ computational 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 are computer program") OR ("advanced simulation and computational program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced simulation are computer program\") OR (\"advanced simulation and computational program\"))".
• Removing quotes may allow a broader search: (( advanced simulation are computer program ) OR ( advanced simulation and computational program )).
• Adding a wildcard symbol may retrieve word variants: (("advanced simulation are computer program") OR ("advanced simulation and computational program"))*.