With a huge range of features included out-of-the-box and over 13 000+ additional extensions available to download
Search Relevance - Improved search results - OC2..
advance search module
Search Products by Autofill [plus] for Opencart
Autocomplete Live Search Products
Advanced Ajax Live search
Admin Mega Search/Quick Search for Admin
SearchOrder 2x - Preview and Extended Search in ..
search product with stock OCMOD
Autocomplete - Best Advanced Live Search Module
Search with Product Description
Webby Quick Search v1.3
Advance Ajax Search (Auto Search)
Category Live Ajax Autocomplete Search
Admin Order List Improved Search
Pop Up Search[VQmod]