Perhaps you should try some spelling variations:
"advanced simulation from computational program" » "advanced modulation from computational program" (Expand search), "advanced calculation from computational program" (Expand search), "advanced simulation and computational program" (Expand search), "advanced simulation by computational program" (Expand search), "advanced simulation cfd computational program" (Expand search)
"_ computational grid computing program" » "_ computational grids computing program" (Expand search), "_ computational and computing program" (Expand search), "_ computational art computing program" (Expand search), "_ computational grid consulting program" (Expand search), "_ computational grid computer program" (Expand search), "_ computational grid computador program" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("_ computational grid computing program") OR ("advanced simulation from computational program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"_ computational grid computing program\") OR (\"advanced simulation from computational program\"))".
• Removing quotes may allow a broader search: (( _ computational grid computing program ) OR ( advanced simulation from computational program )).
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