* Ca Tru is one of the unique traditional music genres of Viet Nam.

1. Ca Tru is one of the unique traditional music genres of the Viet Nam.

Incorrect part: "the Viet Nam"

Corrected sentence: Ca Tru is one of the unique traditional music genres of Vietnam.



2. Worshipping a Kitchen Gods on the 23rd day of the 12th lunar month is believed to see off bad things in the old year.

Incorrect part: "a Kitchen Gods"

Corrected sentence: Worshipping the Kitchen Gods on the 23rd day of the 12th lunar month is believed to see off bad things in the old year.



3. A bamboo dancing is a traditional dance related to the culture of ethnic groups in the northern mountain areas.

Incorrect part: "A bamboo dancing"

Corrected sentence: Bamboo dancing is a traditional dance related to the culture of ethnic groups in the northern mountain areas.



4. Vovinam is a traditional martial art of Viet Nam and it becomes widely popular in the different parts of Viet Nam.

Incorrect part: "the different parts of Viet Nam"

Corrected sentence: Vovinam is a traditional martial art of Vietnam and it becomes widely popular in different parts of Vietnam.



5. A Saint Giong Festival takes place in the third lunar month in Phu Linh commune, Soc Son district, Ha Noi.

Incorrect part: "A Saint Giong Festival"

Corrected sentence: The Saint Giong Festival takes place in the third lunar month in Phu Linh commune, Soc Son district, Hanoi.

Ca Tru is one of the unique traditional music genres of the Viet Nam.
Corrected: Ca Tru is one of the unique traditional music genres of Vietnam.
(We do not need "the" before Vietnam.)
Worshipping a Kitchen Gods on the 23rd day of the 12th lunar month is believed to see off bad things in the old year.
Corrected: Worshipping the Kitchen Gods on the 23rd day of the 12th lunar month is believed to see off bad things in the old year.
("The" should be used because "Kitchen Gods" refers to a specific concept.)
A bamboo dancing is a traditional dance related to the culture of ethnic groups in the northern mountain areas.
Corrected: Bamboo dancing is a traditional dance related to the culture of ethnic groups in the northern mountain areas.
("A" should be removed because "dancing" is an uncountable noun in this context.)
Vovinam is a traditional martial art of Viet Nam and it becomes widely popular in the different parts of Viet Nam.
Corrected: Vovinam is a traditional martial art of Vietnam and it has become widely popular in different parts of Vietnam.
("The" is unnecessary before "different parts," and "becomes" should be changed to "has become" for correct tense usage.)
A Saint Giong Festival takes place in the third lunar month in Phu Linh commune, Soc Son district, Ha Noi.
Corrected: The Saint Giong Festival takes place in the third lunar month in Phu Linh commune, Soc Son district, Hanoi.
("A" should be replaced with "The" because it refers to a specific festival, and "Ha Noi" should be written as "Hanoi" without the space.)