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Forensic Software: ADLab index search oddities

I got some odd results recently while doing an index search in ADLab 3.4.2. Looking for instances of a first name, "markus", that is also spelled "m@rkus". I tried two different index searches, expecting the same results (or maybe slightly more from the option 2) 1. m?rkus 2. m(w/1)rkus With "m@rkus", the '@' should be ignored by dtSearch (the search engine used by ADLab), basically breaking "m@rkus" into two words, "m" and "rkus" with a '' between. "markus" should remain as one word. However, the results are vastly different and appear to be mutually exclusive (searches ran separately btw) Option 1 gives me instances of "markus" but not "m@rkus" Option 2 gives me instances of "m@rkus" but not "markus" The only explanation that I can see is if wildcard searches work within a single word only and proximity searches only span words. Access Data's help desk wasn't any help and I don't see anything in the documentation for AdLab or dtSearch that would explain the behavior. Any ideas?

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