[[formget /wiki/]][[hidden show FullTextSearch]][[text q $$$ Post q $$$$$$ Get q $$$]] [[submit go FullTextSearch]]
[[formend]]
!! Results
### FullTextSearch $$$ Post q $$$$$$ Get q $$$ ###

Try a (/wiki/?show=TitleSearch&q=$$$ PostUrl q $$$$$$ GetUrl q $$$ TitleSearch) instead.
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!! Help
Try something like '(/wiki/?show=FullTextSearch&q=node node)' or '(/wiki/?show=FullTextSearch&q=faq faq)'.