Perhaps you should try some spelling variations:
"advanced optimization in computer program" » "variance optimization in computer program" (Expand search), "and optimization in computer program" (Expand search), "advanced oxidation in computer program" (Expand search), "advanced optimization and computer program" (Expand search), "advanced optimization _ computer program" (Expand search)
"advanced simulation of computation program" » "advanced modulation of computation program" (Expand search), "advanced calculation of computation program" (Expand search), "advanced simulation of computational program" (Expand search), "advanced simulation of computational programs" (Expand search), "advanced simulation of compensation program" (Expand search), "advanced simulation the computation 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 optimization in computer program") OR ("advanced simulation of computation program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced optimization in computer program\") OR (\"advanced simulation of computation program\"))".
• Removing quotes may allow a broader search: (( advanced optimization in computer program ) OR ( advanced simulation of computation program )).
• Adding a wildcard symbol may retrieve word variants: (("advanced optimization in computer program") OR ("advanced simulation of computation program"))*.