The online tutorial in the link below explores how to search systematically in Ovid Medline. The skills developed in this tutorial can be applied to other databases.
Systematic searching for your review - tutorial
The following video will introduce you to advanced search techniques that you can use when conducting a review of the literature. The video runs for approximately 18 minutes.
Creating a systematic search strategy - video
The following video presents advanced search strategies to help you find information for your literature reviews. Approximate running time 20 minutes. (Note: Some of the screenshots in this video are now out-of-date).