Perhaps you should try some spelling variations:
"advanced populations using complex program" » "advanced computations using complex program" (Expand search), "adapted populations using complex program" (Expand search), "advanced modulation using complex program" (Expand search), "advanced formulations using complex program" (Expand search), "advanced populations and complex program" (Expand search), "advanced populations using simplex program" (Expand search), "advanced populations using complex programmes" (Expand search), "advanced populations using complex prograded" (Expand search), "advanced populations housing complex program" (Expand search), "advanced populations using computer program" (Expand search)
"using model python python programming" » "using model pythons python programming" (Expand search), "using model piton python programming" (Expand search), "using model pitons python programming" (Expand search), "using modulo python python programming" (Expand search), "using monty python python programming" (Expand search), "using tool python python programming" (Expand search), "ising model python python programming" (Expand search), "using modis python python programming" (Expand search), "using mobile python python programming" (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 populations using complex program\") OR (\"using model python python programming\"))~".
• Removing quotes may allow a broader search: (( advanced populations using complex program ) OR ( using model python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced populations using complex program") OR ("using model python python programming"))*.