Autocomplete

Autocomplete

HI,
I have noticed if i have an array like below:


Apple
Acceridated
Cat
Car
Baby
Background.

If i put in c it brings in these options:

Acceridated
cat
car
Background

So basically it searched for keyword anywhere in the array , unless i type 2-3 more letter and then it stars making sense , so how can i change the above to only show Cat,car when i enter C . Also for the above if i am adding a Turkish keyword which is like :

İstanbul

So putting I for the textbox does not bring in "İstanbul" however if this is in a dropdown and i click I it takes to "İstanbul" how can this be sorted?

Thank you