How to get value from key with space ?

Qt Code:
  1. conf->beginGroup("lambung");
  2. qDebug() << conf->value("milik saya", "").toString()
  3. conf->endGroup();
  4. //result ""
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I just get empty string. If I get the all keys, the key will visible

Qt Code:
  1. conf->beginGroup("lambung");
  2. qDebug() << conf->childKeys();
  3. conf->endGroup();
  4. //result ("milik saya", "milik kamu", "milik dia")
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