Perhaps you should try some spelling variations:
"advanced optimization and computer programas" » "variance optimization and computer programas" (Expand search), "valued optimization and computer programas" (Expand search), "and optimization and computer programas" (Expand search), "advanced optimization and computer programs" (Expand search), "advanced optimization and computer programmes" (Expand search), "advanced optimization and computer programme" (Expand search), "advanced optimization _ computer programas" (Expand search), "advanced optimization and computer programaas" (Expand search)
"advanced method python computer program" » "advanced methods python computer program" (Expand search), "advanced method method computer program" (Expand search), "advanced python python computer program" (Expand search), "advanced method python computer programa" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced optimization and computer programas\") OR (\"advanced method python computer program\"))~".
• Removing quotes may allow a broader search: (( advanced optimization and computer programas ) OR ( advanced method python computer program ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced optimization and computer programas") OR ("advanced method python computer program"))*.