diff --git a/src/address_dictionary.c b/src/address_dictionary.c
index ed1116f6..fd3fe471 100644
--- a/src/address_dictionary.c
+++ b/src/address_dictionary.c
@@ -251,6 +251,31 @@ phrase_array *search_address_dictionaries_tokens(char *str, token_array *tokens,
     return phrases;
 }
 
+
+phrase_t search_address_dictionaries_substring(char *str, size_t len, char *lang) {
+    if (str == NULL) return NULL_PHRASE;
+    if (address_dict == NULL) {
+        log_error(ADDRESS_DICTIONARY_SETUP_ERROR);
+        return NULL_PHRASE;
+    }
+
+    trie_prefix_result_t prefix = get_language_prefix(lang);
+
+    if (prefix.node_id == NULL_NODE_ID) {
+        log_debug("prefix.node_id == NULL_NODE_ID\n");
+        return NULL_PHRASE;
+    }
+
+    phrase_t phrase = trie_search_prefixes_from_index(address_dict->trie, str, len, prefix.node_id);
+    if (phrase.len == len) {
+        return phrase;
+    } else {
+        return NULL_PHRASE;
+    }
+
+}
+
+
 phrase_t search_address_dictionaries_prefix(char *str, size_t len, char *lang) {
     if (str == NULL) return NULL_PHRASE;
     if (address_dict == NULL) {
diff --git a/src/address_dictionary.h b/src/address_dictionary.h
index cc5e8748..1a80ed6c 100644
--- a/src/address_dictionary.h
+++ b/src/address_dictionary.h
@@ -63,6 +63,7 @@ bool search_address_dictionaries_with_phrases(char *str, char *lang, phrase_arra
 phrase_array *search_address_dictionaries_tokens(char *str, token_array *tokens, char *lang);
 bool search_address_dictionaries_tokens_with_phrases(char *str, token_array *tokens, char *lang, phrase_array **phrases);
 
+phrase_t search_address_dictionaries_substring(char *str, size_t len, char *lang);
 phrase_t search_address_dictionaries_prefix(char *str, size_t len, char *lang);
 phrase_t search_address_dictionaries_suffix(char *str, size_t len, char *lang);