How do you search for a thread in 4chan?

I just cannot figure out how to search through the threads for a specific keyword, is that possible in 4chan? TIA

hy my name is franco y yes exact

aguante metallica , el rock las drogas el paco las meta anfetaminas y 4chan para toda la vida aguante pdro bear
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wat te estoy molestando jajajajajaajaj idiota