14. A document retrieval system comprising: a computing device that comprises a non-transitory memory that stores: a set of standardized paragraph terms for paragraphs of a collection of electronic documents where a set of synonymous terms within a paragraph have been replaced with the set of standardized paragraph terms, wherein each standardized paragraph term has an associated term weight; and executable instructions that cause the computing device to: generate standardized search terms in response to a search query; generate a paragraph scores for the paragraphs based at least in part on the associated weights of standardized paragraph terms that match one or more of the standardized search terms; determine overall document scores for the electronic documents based at least in part on a combination of the paragraph scores; and determine a set of matching documents, wherein the set of matching document is ordered using the document scores of the matching documents.
15. The document retrieval system of claim 14 , wherein the memory also stores the collection of electronic documents, and the instructions further cause the computing device to: generate sets of paragraph terms for the paragraphs of the document; standardize the sets of paragraph terms to generate sets of standardized paragraph terms for the paragraphs; and associate a term weight with each standardized paragraph term.