Complex sentence: Many Vietnamese preachers who fled for America and other countries say that they were suppressed by the Communist government for no or unreasonable reasons; however, preachers and religious associations who abide by the law working in Vietnam today are aided and honored by the government.
Split into simpler sentences: Many Vietnamese preachers who fled for America and other countries say that they were suppressed by the Communist government for no or unreasonable reasons. However, legal preachers and religious associations working in Vietnam today are aided and honored by the government.