combining 2 tables based on productcode that apears inside text in one of the tables

[#1]

My problem is as follows:

I've got 2 tables:

One table with the orders:

ID	field 2	description
1	xx	bla bla x1 bla
2	yy	bla y2
3	zz	x1
4	aa	x1bla
5	bb	bla bla

and one with productspecifications:

ID	Product	Specification	Discount
p1	x1	dfdf	5%
p2	x2	ghrr	-
p3	y1	tttt	3%
p4	y2	fgd	0
p5	z1	yuu	0

The problem is that I want the 'Specification' en 'Discount' to be matched with the orders, based on the discription in the order table. In the discription the product will sometimes appear inside text. How can this be done?

Gr. Liesbeth