Perhaps you should try some spelling variations:
"using computational simulation using problems" » "and computational simulation using problems" (Expand search), "using computational simulation using problem" (Expand search), "using computational simulation housing problems" (Expand search), "using computational simulation ising problem" (Expand search)
"using population in coding program" » "aging population in coding program" (Expand search), "ageing population in coding program" (Expand search), "young population in coding program" (Expand search), "using population in cloning program" (Expand search), "using population in loading program" (Expand search), "using population in cooling programs" (Expand search), "using population on coding program" (Expand search), "using population in decoding program" (Expand search), "using population non coding program" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("using computational simulation using problems") OR ("using population in coding program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational simulation using problems\") OR (\"using population in coding program\"))".
• Removing quotes may allow a broader search: (( using computational simulation using problems ) OR ( using population in coding program )).
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