Perhaps you should try some spelling variations:
"learning-based co simulation technique" » "learning-based co imputation techniques", "learning-based co inhalation technique", "learning-based co implantation technique", "learning-based _ simulation technique", "learning-based a simulation technique", "learning-based 3d simulation technique", "learning-based no2 simulation technique", "learning-based two simulation technique"
"learning-based code reduction technique" » "learning-based code reduction techniques", "learning-based code truncation technique", "learning-based model reduction technique", "learning-based closed reduction technique", "learning-based anode reduction technique", "learning-based no2de reduction technique", "learning-based twode reduction technique", "learning-based _de reduction technique"

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