Perhaps you should try some spelling variations:
"learning-based 3d mitigation techniques" » "learning-based 3d imputation techniques", "learning-based _ mitigation techniques", "learning-based _ litigation techniques", "learning-based co mitigation techniques", "learning-based k mitigation techniques"
"learning-based mri inhalation technique" » "learning-based mri floatation technique", "learning-based mri implantation technique", "learning-based mri imputation techniques", "learning-based _ inhalation technique", "learning-based mil inhalation technique"

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