10. The method in accordance with claim 7 , wherein the act of performing a search comprises an act of performing a search for a text sample that includes the first particular text component and a second particular text component, but which does not include a third particular text component, the act of scanning also performed in search of a third particular text component identifier that identifies the third particular text component; whenever upon finding the third particular text component identifier during the act of scanning, an act of using the corresponding text sample identifier to identify the text sample that includes the third particular text component, the method further comprising: an act of identifying a result of the search as including at least some of the text samples that include the first particular text component and the second particular text component, but which does not include the third particular text component.
10. The method in accordance with claim 7 , wherein the act of performing a search comprises an act of performing a search for a text sample that includes the first particular text component and a second particular text component, but which does not include a third particular text component, the act of scanning also performed in search of a third particular text component identifier that identifies the third particular text component; whenever upon finding the third particular text component identifier during the act of scanning, an act of using the corresponding text sample identifier to identify the text sample that includes the third particular text component, the method further comprising: an act of identifying a result of the search as including at least some of the text samples that include the first particular text component and the second particular text component, but which does not include the third particular text component. 11. The method in accordance with claim 10 , wherein the act of using the corresponding text sample identifier to identify the text sample that includes the first particular text component comprises an act of using a bit of a first bitmap to record that the text sample includes the first particular text component, wherein the first bitmap has a corresponding bit for each text sample in the set of text samples, wherein the act of using the corresponding text sample identifier to identify the text sample that includes the second particular text component comprises an act of using a bit of a second bitmap to record that the text sample includes the second particular text component, wherein the second bitmap also has a corresponding bit for each text sample in the set of text samples, and wherein the act of using the corresponding text sample identifier to identify the text sample that includes the third particular text component comprises an act of using a bit of a third bitmap to record that the text sample includes the third particular text component, wherein the third bitmap also has a corresponding bit for each text sample in the set of text samples.