Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Angkor' has mentioned 'Vietnam' in the following places:
Occurrence Sentence Text Source
Through a program of military campaigns, alliances, marriages and land grants, he achieved a unification of the country bordered by China to the north, Champa (now Central Vietnam) to the east, the ocean to the south and a place identified by a stone inscription as "the land of cardamoms and mangoes" to the west.
Its neighbors to the east, the Cham of what is now southern Vietnam, took advantage of the situation in 1177 to launch a water-borne invasion up the Mekong River and across Tonlxc3xa9 Sap.
[28] A study of tree rings in Vietnam produced a record of early monsoons that passed through this area.