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

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