I want result like suppose i have 3 products with their name like sony tv, led tv and led test Tv. so if I search only by name Tv then all products should be display and other condition if i search test Tv then it should only disply (led test Tv) not other results.
open your cms,
click system -> configuration -> catalog -> catalog search -> change your Search Type to full text.
after that you'll be notified to reindex your search then you have to reindex it.