Best answer by Navid
We would like to let you know the following, which should help to alleviate your concerns regarding search results.
Our search relies on an algorithm called ‘Discoranking’ (which stands for “Discovery Ranking”) which returns the most popular results first. Discoranking pulls the search results based upon a variety of variables including the wording of your search and the popularity of profiles.
Each track and artist has a "DiscoRank" that is automatically calculated using a wide variety of factors. These include, but are not limited to; the number of likes, reposts, and followers associated with specific tracks and accounts. Not only does the number of your own followers give you a higher DiscoRank-- our algorithm also considers how many followers your followers have and so on. The more “influential” the network of followers you are associated with, the higher your DiscoRank will be. As you can imagine, this network could go on forever!
All of these factors work together to give the most popular and relevant results for a search.
It is important to note that an account’s Display Name is just one of many variables which affect your position within search results; your popularity remains the dominant factor in Discoranking algorithms.
I hope this allows you to understand the search results you're seeing more comprehensively.