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Forum search function AND Boolean


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I'm trying to use the forum search unction to search for the words 'antique', 'pocket' and 'rust'. The website suggest I use boolean search AND function but this only results in the word "AND" being searched for as well. I feel like I'm missing something obvious. Am I? (BTW- that search turned up almost 46,000 results, so there's a lot that probably doesn't pertain to what I'm looking for :D )

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