A method for indexing a product identifier and logical parts thereof according to one embodiment of the present invention includes receiving a product identifier; splitting the product identifier into logical parts; indexing the product identifier and the individual logical parts in association with a particular document or portion thereof in an index; and storing the index. A method for processing a search query according to another embodiment of the present invention includes receiving a search query containing one or more terms; searching a search index containing complete product identifiers and variations thereof for attempting to match the one or more terms to the product identifiers or the variations thereof; and if one or more of the terms matches a complete product identifier or variation thereof, selecting and outputting an indicator of a document, or portion thereof, associated with the matching product identifier.