How to overcome Vietnam’s refusal of allegedly descriptive trademarks?

Numerous trademark applications in Vietnam are denied for the following reasons: The trademarks do not meet the protection requirement since they are regarded as descriptive of the goods/services in question. Trademarks that include only signs used in commerce to indicate the type, quality, quantity, intended use, value, place of origin, of the goods, or the time of manufacture, or signs that have become customary in Vietnam, are considered descriptive of certain properties or characteristics of the intended goods/services, and thus cannot perform the function of trademarks and are not protected....