"no"
The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI name: Biệt thự ven biển
POI types: internet_access-wlan tourism-hotel
OSM data version: 2019-05-17T13:54:02Z
#mapsme

"ok"
POI name: Đất 513m
POI types: tourism-viewpoint
OSM data version: 2017-07-28T09:42:02Z
#mapsme

"anh ba sài gòn"
POI has no name
POI types: man_made-surveillance
OSM data version: 2017-07-28T09:42:02Z
#mapsme