Nguyen Huu Nghia, 19, and a 14-year-old girl are accused of repeatedly faking beer purchases and ordering additional items to distract shop owners before making off with the goods.
Do Quoc Vuong entered a cafe, ordered coffee, waited for the place to be empty, then suddenly held a knife to the female owner's throat, stealing gold and cash, according to police.
A 20-year-old woman fabricated a story about being robbed of her iPhone on a street in Tang Nhon Phu ward (formerly Thu Duc City) to ask her parents for money.