Perhaps you should try some spelling variations:
"advanced simulation and computer program" » "advanced calculation and computer program" (Expand search), "advanced simulation _ computer program" (Expand search)
"advanced modulation on commuting program" » "advanced calculation on commuting program" (Expand search), "advanced oxidation on commuting program" (Expand search), "advanced modulation on computing program" (Expand search), "advanced modulation on consulting program" (Expand search), "advanced modulation on community program" (Expand search), "advanced modulation of commuting program" (Expand search), "advanced modulation in commuting program" (Expand search), "advanced modulation and commuting 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 modulation on commuting program\"))~".
• Removing quotes may allow a broader search: (( advanced simulation and computer program ) OR ( advanced modulation on commuting program ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced simulation and computer program") OR ("advanced modulation on commuting program"))*.