The search engine is nice but it has a very short maximum query length and complexity allowance.
Sorry for late response, I found DeepSeek search has 128 characters limit on each search request. Now added workaround with Flash that shortens the query when it reaches 128 character limit.
Why?
It's new Search API from DeepSeek and they didn't have search UI. Most non-tech people were curious try. So I built for for fun mostly.