Perhaps you should try some spelling variations:
"advanced optimization and computer program" » "variance optimization and computer program" (Expand search), "and optimization and computer program" (Expand search), "advanced oxidation and computer program" (Expand search), "advanced optimization _ computer program" (Expand search)
"advanced python python computer programs" » "advanced method python computer programs" (Expand search), "advanced path python computer programs" (Expand search), "advanced symphony python computer programs" (Expand search), "advanced pythons python computer programs" (Expand search), "advanced piton python computer programs" (Expand search), "advanced pitons python computer programs" (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 optimization and computer program\") OR (\"advanced python python computer programs\"))~".
• Removing quotes may allow a broader search: (( advanced optimization and computer program ) OR ( advanced python python computer programs ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced optimization and computer program") OR ("advanced python python computer programs"))*.