The best-known Exhaustive Concordance is Strong's, which is based on the King James Version. A very useful feature of exhaustive concordances is a numbering system which assigns a specific number to each of the Greek and Hebrew words found in the Bible. Strong's numbering system is dated and inadequate by modern standards, but is still widely used. There are also concordances that are based directly on the Greek and Hebrew text. For most effective Bible study, you need a concordance that is based on the Bible version you use.
Software can perform the same functions as a Concordance with greater speed and flexibility.
Look up other inflected forms or roots of words. By looking up the other forms or spellings, you can do a more thorough word or concept study. When doing a word study, use an English thesaurus to find synonyms and related words. For example, under faith a thesaurus will list words such as belief, hope, confidence, assurance, dependence, trust, etc. Don't study in the Concordance alone use your Bible.