System and methods for enhancing search engine functionality by enabling and providing a new search function based on fuzzy expressions in a query string. When a query is received by a search engine, it is first analyzed to identify whether the query contains an expression that represents a fuzzy reference to certain objects or properties of objects, or object with certain properties, to overcome the limitations of the keyword-matching methods used by conventional search engines. For example, the present invention can accurately retrieve results for a query such as “find large-screen smart-phones” or “find light-weighted computers”, by understanding the meaning of the query and automatically identifying objects with applicable properties and mapping the meaning of the expression to such objects.