Perhaps you should try some spelling variations:
"advanced simulation and sampling program" » "advanced calculation and sampling program" (Expand search), "advanced simulation and labeling program" (Expand search), "advanced simulation and smoking program" (Expand search), "advanced simulation and jumping program" (Expand search), "advanced simulation _ sampling program" (Expand search), "advanced simulation and sample program" (Expand search)
"advanced modulation python computer program" » "advanced calculation python computer program" (Expand search), "advanced oxidation python computer program" (Expand search), "advanced modulation method computer program" (Expand search), "advanced modulation pathway computer program" (Expand search), "advanced modulation cyclone computer 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 simulation and sampling program\") OR (\"advanced modulation python computer program\"))~".
• Removing quotes may allow a broader search: (( advanced simulation and sampling program ) OR ( advanced modulation python computer program ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced simulation and sampling program") OR ("advanced modulation python computer program"))*.