sift features for "similar" objects

Question

I find out that SIFT features is only good for find the same object in the scene, but it seems not suitable for "similar" objects.

maybe I doing something wrong? maybe I must use some other descriptors?

images and SIFT\ASIFT algorithms work:

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same problem- no matches

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Answer 1

The basic SIFT algorithm using VLfeat gives me this as a result. Which given the small and not so unique target image, is a pretty good result I would say.