Abstract: In some embodiments, a rewritten search query is received. The rewritten search query can comprise a first flexible operator being applied to a term, a first condition, a first satisfaction target indicating a minimum amount of search results for the first flexible operator that are to satisfy the first condition, a second condition, and a second satisfaction target indicating a minimum amount of search results for the first flexible operator that are to satisfy the second condition. Search results for the first flexible operator can be determined from a search index. A first set of documents from the search index can be determined to be part of the search results for the first flexible operator based on the first set of documents satisfying the first condition without requiring the first set of documents to satisfy the second condition until a skip number for the second condition has been reached.