Search on iPhone without results

Can not search effectively. Many words do not show up on the seach done on the iPhone but are found without problem on the PC desktop running windows.
Anyone with suggestions

The searching feature should function the same on both clients. Could you give me an example of a search you’re using that is producing different results on different clients? I can then try to reproduce it using a copy of your AnkiWeb collection.

Issue resolved. I was unclear how to search across all my decks on the mobile and searched instead in a specific deck.
Thanks for you response