let's say you need to find a 74hc123 , but you don't know if it is sn74.. , dm74... m74... simply use *
the search understands wildcards. the * is implicit at the end of the search, but it is not at the beginning
*1k*805
will find any part that has 1k and 0805 in the description.
like
RES, SMD, 1K, 1%, 1/10W, 0805