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 from composting program" » "advanced modulation from composting program" (Expand search), "advanced calculation from composting program" (Expand search), "advanced simulation from computing program" (Expand search), "advanced simulation from composting process" (Expand search), "advanced simulation from consulting program" (Expand search), "advanced simulation co composting program" (Expand search), "advanced simulation of composting program" (Expand search), "advanced simulation from compost 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 from composting program\"))~".
• Removing quotes may allow a broader search: (( advanced simulation and computer program ) OR ( advanced simulation from composting program ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced simulation and computer program") OR ("advanced simulation from composting program"))*.