Ancestry Compostion on 23andme of Vietnamese and other Asians

T. T. L 3rd to Distant Cousin (Vietnamese) His family is from Hue, Vietnam. 
0.14% shared, 1 segment; (Y1b maternal haplotype and J2b2 paternal haplotype) 

Speculative Mode:

Asian & Native American 99.4%

Chinese East Asian 54.8%
Southeast Asian 41.8%
Nonspecific East Asian 1.4%
Nonspecific East Asian & Native American 1.5%

South Asian 0.2%

Sub-Saharan African < 0.1%
< 0.1%
Central & South African 0.4%

Standard Mode:
Asian & Native American 99.2%

East Asian Chinese 44.1%
Southeast Asian 31.9%
Nonspecific East Asian 4.0%

Nonspecific East Asian & Native American 19.3%

Sub-Saharan African < 0.1%

Central & South African < 0.1%

Distant Relative T.N (Vietnamese)
(Z4A maternal haplotype)

Standard Mode:

Asian & Native American 98.6%

Chinese East Asian 32.1%
Southeast Asian 36.7% 

Nonspecific East Asian6.7%

Nonspecific East Asian & Native American 23.1%

South Asian 0.3%

Speculative Mode:

Asian & Native American 99.2%

Chinese East Asian 46.7%
Southeast Asian 44.1%

Nonspecific East Asian 4.6%

Nonspecific East Asian & Native American 0.5%

South Asian 0.1%

European 0.1%

Nonspecific European 0.1%

Oceanian 0.1%

Here is my ancestry composition: (B4c1b maternal haplotype)
My family is from Go Cong, Vietnam; Ly Son, Vietnam; Hai Duong, Vietnam

Speculative mode:

Asian & Native American 99.8%

Southeast Asian 59.5%
Chinese East Asian 32.7%

Nonspecific East Asian 4.6%

Nonspecific East Asian & Native American 3.1%

Middle Eastern & North African 0.1%

European < 0.1%
Central & South African 0.1%

Standard Mode:

Asian & Native American 99.5%

Southeast Asian 52.9%
East Asian 20.0%
Chinese East Asian 16%
Non- Specific East Asian 4%
Nonspecific East Asian and Native American 26.5%

Sub-Saharan African < 0.1%

Central & South African < 0.1%