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