Vietnam now, it seems, is officially a market economy with socialist orientation.

I wonder what "socialist orient market economy" means.

I suspect it means the party plans to privatize a lot more businesses, but out of respect for the past, it will still use the word "socialist" somewhere -- just oriented, you understand, in a market economy.  For those not attuned to these subtleties, "market" means "capitalist," but that word is rarely used in polite Vietnamese society.