Google Adwords Ad Display Problem For Specific Keywords

[dreamcon]

am working on one campaign which have keywords as follow.

"Men Jeans"
[Men Jeans]
"Women Jeans"
[Women Jeans]
"Kid Jeans"
[Kid Jeans]
etc....

I also created ad for specific keyword as follow.

50% Off Men Jeans

50% Off Women Jeans

50% Off Kid Jeans etc....

But, when I searched Men Jeans so, Google shows 50% Off Women Jeans ad during listing.

All keywords & ads are in one Ad group. I don't want to separate ad group by Jeans type like Men, Women or Kid.

I want to solve this issue & If some one will search specific keyword so, ad should be contain that specific keyword part in Ad.

If some one will search Men Jeans so, Ad should be 50% Off Men Jeans.