excat search (character by character) - no regex at all

heiter

my table:

Nr | "Liefer"
----------------
1 Bont- Deinking
2 Deinking
3 Akten
--------------------


i use individual column search fields. When I search for "Deinking" in the "Liefer" Column i get both
"Bont- Deinking" and "Deinking"

What I want to get is just "Deinking".
smart filtering is off, still get filtered with regex.
my search code:
[code]
$("tfoot input").keyup( function () {
/* Filter on the column (the index) of this element */
var realIndex = oTable.oApi._fnVisibleToColumnIndex( oTable.fnSettings(), jQuery('tfoot input').index(this));
oTable.fnFilter(this.value, realIndex,true,false);
} );
[/code]

would appreciate your help guys!