How to find a larger phrase in Sphinx by a smaller one in the index?

Question

Sphinx

There is a sphinx index, in which, among other things, there is a record with a field value. When performing a search on this index, nothing is found
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with the query . If you specify as a request , the result is immediately in place, but the problem is that it is impossible to know in advance less significant words. For example, there is a similar query that finds nothing if there is an entry in the index . It seems to me that the answer is somewhere on the surface, but I can not find a solution. So I will be grateful for any advice and tips. sphinx version 3.1.1 The index config looks like thisКарты памяти SDHC
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index campaign
{
    source = categories
    path = /var/lib/sphinx/categories

    morphology = stem_enru, soundex, metaphone
    html_strip = 1
    min_word_len = 2
    charset_table = 0..9, english, russian

    regexp_filter = \/ => \\/
    regexp_filter = \" => \\"
}

Answer 1

Change search mode to match any