Word Illusions often require finding a new perspective to look at the image. Stepping back a bit might help not only when looking at these pictures but it is also a good way to solve other problems.
There is also another trick how you can read the hidden words. Scroll this page down and up again a few times while looking at a specific picture.
I hope that helps you to decipher all the messages.
Try to say the color of the words, instead of actually reading them. You will find it surprisingly difficult. The right half of your brain is trying to say the colors, the left half is trying to say the word itself. This picture brain teaser is used by mountaineers to test if their concentration is ok. (by J. R. Stroop).
Even though the letters are jumbled in the following paragraph, most people have no trouble reading it!
Aoccdrnig to rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit a porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe.