Police are searching for three young women who they say threw bleach in the eyes of a bus passenger after robbing him of his money. The victim was returning home from work early Sunday morning, riding the #28 bus on Blue Hill Avenue through Roxbury, when it seems the trio sized him up. Officials say one female slapped the man about the head, while one went to work to search him for money. “One of the women puts her knee on top of his legs so he can’t get up and takes the money from his pockets,” MBTA Superintendent-in Chief Joseph O’Connor told WBZ-TV. The third suspect tossed the bleach, contained in a water bottle, in his eyes using it as a “cheap weapon,” say police.