As far as a search field is concerned , when we search an item

eg: jewel , just after typing "j" in the field , it should provide all the

results starting with "j"

but here the auto listing of items are not working ,

in the above image you can see that when 'y' is typed it provides 3

results but all those results provided are the already searched names.

Only the already searched names are shown in the result , it doesnt show

the complete products in the page starting with y

eg(below) : when a new item is searched , no related items are shown in the dropdown

I have indexed as well as removed the cache, Still the case is same

Can anyone help me out to resolve this issue !