search duplicate results
I think maybe you have a pagination issue or not clearing variables issue perhaps. When you search anything at all, like Husky dog breed for example, results come up on page 1. If you click on page 2, some of the same results that were on page 1 also appear on page 2 and they are not ads, although ads do appear a lot. One example is the husky wikipedia page, the same exact result on page 1 and page 2. As you click more pages further in the problem is the same with barely any new results showing up.