You can control whether lists are affected by syllable matching in the Preferences: Typing dialog box. The check box Match syllables while typing controls whether syllable matching is active or not, regardless of whether the project setting indicate that syllables are indexed in the symbol database.
As a shortcut, you can toggle the use of syllable matching by prefixing what you type with a space character. For example, if you turned syllable matching off in the Preferences: Typing dialog box, you can use it selectively by adding a space character in front of the syllable you type.