That must be a particularly bad transcription and you can leave a correction on the Ancestry record.
Generally, if a search does not come up immediately, I would try various combinations. For example: first name, year of birth and place if birth; name plus parent or spouse: use * for some letters - you do need to have at least 3 letters and use exact search e.g H**ry would show you Henry or Harry which often are used interchangeably.
Really, just keep trying. Whether that would have found you Marian though, I'm not sure.
