Perhaps you should try some spelling variations:
"advanced simulation from simplex program" » "advanced modulation from simplex program" (Expand search), "advanced calculation from simplex program" (Expand search), "advanced simulation from simples program" (Expand search), "advanced simulation from complex program" (Expand search), "advanced simulation from simple program" (Expand search), "advanced simulation from simpler program" (Expand search)
"advanced control based constraint program" » "advanced control based constraint programs" (Expand search), "advanced control based constraint programmig" (Expand search), "advanced control based constraint programing" (Expand search), "advanced control based constraints program" (Expand search), "advanced control base constraint program" (Expand search), "advanced control and constraint program" (Expand search), "advanced controle baseado constraint program" (Expand search), "advanced content based constraint program" (Expand search), "advanced context based constraint program" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced control based constraint program\") OR (\"advanced simulation from simplex program\"))~".
• Removing quotes may allow a broader search: (( advanced control based constraint program ) OR ( advanced simulation from simplex program ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced control based constraint program") OR ("advanced simulation from simplex program"))*.