NOW, THERES MORE!!! BAHAHAHAHHAHAHA!!! (shoutout to @thehobbit for cracking up the previous challenge with detect language)
Here we go 
1 (Language: Latgalian
)
boīnga 747: viersyune
2 (Language: Kokborok
)
Chwrairok hai wngdi: BOEING HWNGKHE ANG THANGNAI
3 (Language: Inuktitut
)
ᓯᒡᒪ ᓯᒡᒪ ᓄᑲᑉᐱᐊᖅ ᓯᒡᒪ ᓄᑲᑉᐱᐊᖅ ᓯᒡᒪ ᓄᑲᑉᐱᐊᖅ
4 (Language: Khmer
)
ទឹកកក ៧១១
5 (Language: Mongolian
)
R.I.P хүн бүр Потомак голын агаарт мөргөлдсөн
Again, thats all. Try to translate them!
Number 3 made me cringe inside. I also guessed what number five was before i translated (RIP gave it away).
Lmao i had no idea what should i put in number 3 so i put that 
That’s what Wikipedia says. Maybe they speak some khmer due to immigration or due to an area being close to Cambodia
vietnamese people DO speak Khmer, but only in a specific area that has the language, but they still speak vietnamese because everyone that speaks Khmer has been affected by the vietnamese speakers
Also the Khmer people
