Both sentences are the same?
I've yet to find anything better. and I couldn't find anything better yet.

Question

Both sentences are the same?
I've yet to find anything better.  and  I couldn't find anything better yet.

Answer

For me the first one has a mistake (because yet is used with negative statement)  "I haven't found anything better yet", the second one is not common to use it (yet is mostly used with present perfect tense have+past perfect and  is used at the end -for negative statements-)

Regards!

Answer

The first one is good. The second should be: "I haven't found anything better yet."

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