Perhaps you should try some spelling variations:
"advanced calculation and computer program" » "advanced glycation and computer program" (Expand search), "advanced calculations and computer program" (Expand search), "advanced calculation in computer program" (Expand search), "advanced calculation of computer program" (Expand search), "advanced calculation _ computer program" (Expand search)
"advanced simulation basic computer program" » "advanced modulation basic computer program" (Expand search), "advanced stimulation basic computer program" (Expand search), "advanced simulation based computer program" (Expand search), "advanced simulations based computer 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 basic computer program") OR ("advanced calculation and computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced simulation basic computer program\") OR (\"advanced calculation and computer program\"))".
• Removing quotes may allow a broader search: (( advanced simulation basic computer program ) OR ( advanced calculation and computer program )).
• Adding a wildcard symbol may retrieve word variants: (("advanced simulation basic computer program") OR ("advanced calculation and computer program"))*.