One thing which I've found can help, is that your computer will download all of the available transfers when you initially log into top11, and likewise if you reload the page. As a result, if you leave your window open for a long time without reloading the top11 application, new transfers don't appear.

So try opening up facebook again, and re-logging into the transfers screen, and you might find more transfers available

Although sometimes different servers simply have huge differences in the quality of players available (e.g. My gf's account had around around 40x 5 star players available one day, by comparison I only had around 5 lol)