To search by multiple tags, seperate the tags with "," to drill down your results.
eg: book2,eden will return results of photos which contains both book2 and eden.
Search by Photo id/ref number:
To search by Photo id/ref number, simply type in the photo id/ref number in the search field to get the information of the photo.
eg:11616727065/B002/A123/R4960 will take you to Castle Eden Photo Information directly.