Wobbly ground anchors on the fence. Is it possible to stabilize without ugly braces

[Grillen]

I am building a fence around a part of the property and there is one spot with 4 ground anchors in a row that aren't quite stable when driven in. The other 30 ground anchors become very stable.

Is there a smart way I can use to anchor these 4 so that they become more stable? I don't want any diagonal braces in or out from the post as they would be in the way. But maybe there are other ways that can be used?

These are the ones I am using
https://www.byggmax.se/spik-och-skruv/byggbeslag/jordankare-och-stolpskor/jordankare-p238295

and the posts up from the ground anchors are about 70cm and the entire fence is about 90cm high from the ground.

 

[useless]

Try driving down some decimeter-sized stones into the ground next to the anchor. It has worked for me to stabilize wooden posts.

 

[Alfredo]

and if that is not stable enough, you can dig a "lagom" pit/hole, fill it with concrete, and place the ground anchor in the concrete where needed.