Complex sentence: Most of these myths have been weakened by contact with Western mores, but many have stood the test of changing times; these "vidokoni" (fictitious stories) have a moral behind them.
Split into simpler sentences: Most of these myths have been'busted' but there are some that are still there because they have stood the test of changing times. There are a lot of "vidokoni" (fictitious stories) which always have a moral behind them.