13. A system of searching for an element in speech related documents, the system comprising: a non-transitory memory; and a hardware controller configured to: transcribe a set of speech recordings stored in a speech recording database to a set of phoneme strings and include the phoneme strings in a set of phonetic transcriptions, reverse-index, using one or more parser rules, the phonetic transcriptions according to one or more phonemes, and store the reverse-indexed transcriptions in an inverted index database including a mapping to documents such that the one or more phonemes can be used as a search key for searching in the phonetic transcriptions for a phoneme string, transcribe a textual search term into a set of search phoneme strings, and use the set of search phoneme strings to search for an element in the set of phonetic transcriptions and produce a list of the documents ranked according to the match of the phoneme strings to the documents.
13. A system of searching for an element in speech related documents, the system comprising: a non-transitory memory; and a hardware controller configured to: transcribe a set of speech recordings stored in a speech recording database to a set of phoneme strings and include the phoneme strings in a set of phonetic transcriptions, reverse-index, using one or more parser rules, the phonetic transcriptions according to one or more phonemes, and store the reverse-indexed transcriptions in an inverted index database including a mapping to documents such that the one or more phonemes can be used as a search key for searching in the phonetic transcriptions for a phoneme string, transcribe a textual search term into a set of search phoneme strings, and use the set of search phoneme strings to search for an element in the set of phonetic transcriptions and produce a list of the documents ranked according to the match of the phoneme strings to the documents. 14. The system of claim 13 , wherein the controller is configured to, prior to reverse-indexing the phonetic transcriptions, performing at least one of: removing a phoneme string from the set of phonetic transcriptions, and replacing a phoneme string in the set of phonetic transcriptions.