Wrapping every multi-word phrase in exact-phrase quotes (added for the
"uyuşturucu madde ticareti" false-positive problem) was too strict for
independent keyword queries like "bıçak yaralaması beraat" or the AI
query-optimizer's extracted keywords — those words rarely appear
verbatim adjacent to each other, so exact-phrase returned 0 results.
Now each word is prefixed with + instead (AND semantics: all words
must appear somewhere in the decision, not necessarily adjacent).
This still fixes the original "madde" noise problem while no longer
breaking loose multi-keyword searches.