Perhaps you should try some spelling variations:
"advanced computation _ computer program" » "advanced computations _ computer program" (Expand search), "advanced computational _ computer program" (Expand search), "advance computational _ 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("advanced computation _ computer program") OR ("advanced simulation from composting program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced computation _ computer program\") OR (\"advanced simulation from composting program\"))".
• Removing quotes may allow a broader search: (( advanced computation _ computer program ) OR ( advanced simulation from composting program )).
• Adding a wildcard symbol may retrieve word variants: (("advanced computation _ computer program") OR ("advanced simulation from composting program"))*.