Ancestry Compostion on 23andme of Vietnamese and other Asians

K.N 0.11% shared 1 segment. F1a1 maternal haplotype and O2a1a paternal haplotype. He is Vietnamese. 

Standard Mode:

East Asian & Native American 99.4%

East Asian (Chinese) 35.9%

Nonspecific East Asian & Native American 22.2%

South Asian 0.1%

Speculative Mode

East Asian & Native American 99.7%

East Asian Chinese 45.3%

Nonspecific East Asian 3.9%

Southeast Asian 46.8%

Nonspecific East Asian & Native American 3.8%

My information on GED Match:
Eurogenes K13 with matches from 179 populations
1 Dai 94.80%
2 Austroasiatic_Ho 3.24%
3 Cambodian 1.33%
4 Malay 0.47%
5 Sardinian 0.11%
6 Chamar 0.04%
7 Spanish_Galicia 0.01%
8 Algerian 0.00%
9 Moroccan 0.00%
10 Mozabite_Berber 0.00%

(what is Austrosiatic_Ho?)

Dodecad V3 with matches from 227 populations
1 Vietnamese 63.46%
2 MAS 11.06%
3 Iban 10.19%
4 Cambodians 9.92%
5 Daur 3.11%
6 Lithuanian 1.12%
7 GIH 1.12%
8 Maasai 0.01%
9 MKK 0.00%
10 Tu 0.00%

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My Lao's distant relative from Savanakhet, Laos and Mukdahan, Thailand
Eurogenes K13 with matches from 179 populations

1 Dai 91.79%
2 Austroasiatic_Ho 6.43%
3 Papuan 1.19%
4 Sardinian 0.53%
5 Mozabite_Berber 0.04%
6 Moroccan 0.01%
7 North_Italian 0.01%
8 Chamar 0.00%
9 Spanish_Galicia 0.00%
10 Algerian 0.00%

Dodecad V3 with matches from 227 populations
1 Cambodians 46.21%
2 Tujia 34.20%
3 Lahu 13.69%
4 Chenchu 2.67%
5 Daur 1.86%
6 Lithuanian 1.00%
7 Siddi 0.36%
8 BiakaPygmy 0.02%
9 Nganassan_12 0.01%
10 Yakut 0.00%