9. The system of claim 8 , where the one or more processors further execute instructions to: create, based on normalizing the generated term vector for each document in the first set of documents and normalizing the generated term vector for each document in the second set of documents, a composite term vector.
9. The system of claim 8 , where the one or more processors further execute instructions to: create, based on normalizing the generated term vector for each document in the first set of documents and normalizing the generated term vector for each document in the second set of documents, a composite term vector. 10. The system of claim 9 , where, when selecting the first subsequent search query or the second subsequent search query, the one or more processors further execute instructions to: select the first subsequent search query or the second subsequent search query using the composite term vector.