I tried searching for "Society of Sensation" just now, using the search box at the top of the right-aligned column, and it linked me to /forum/is-ruppel-underrated with an error reading "Validation error, please try again. If this error persists, please contact the site administrator."
A second search linked me to what appears to be the search results for the Gray Wastes, with the same error.
Advanced search will work for you. i will be working on the regular search box this weekend to see whats wrong with it. Thank you for the exaple search terms, Ill see what i can find with that.
It doesn't matter what the search terms entered are; you will get the same result: either a validation error, or it'll act like you entered some random words (this varies day to day, but typing different search terms on the same day will lead to the same random words being registered)
Ok, turns out the search box was being cached globally. Since the form action is different per page - this caused some rather bizarre behavior. I think it's fixed now 
Let me know if it keeps acting up.
Yup, I get that stuff as well. The error varies slightly day by day (some days it will just send you to a random Planewalker page)
Just use the advanced search options; they're not glitched.