https://www.nytimes.com/2013/04/21/business/before-housing-b...

So far as I can discover, a land boom has never been exactly defined. The idea implies a very unusual degree of activity in the market, and of. course, rapidly rising values. Values rise to an unreasonable level, a level. that cannot be supported subsequently, and thus boom and collapse are.
https://www.jstor.org/stable/1231536?seq=1

What is a real estate bubble?
A real estate bubble, also referred to as a “housing bubble,” occurs when the price of housing rises at a rapid pace, driven by an increase in demand, limited supply and emotional buying. Once speculators recognize that housing prices are on the rise, they enter the market, further driving up demand. The phenomenon is called a bubble because at some point it will burst.
https://www.bankrate.com/glossary/r/real-estate-bubble/

... tạo ra những cơn sóng sốt đất.
... creating waves of land price fever.
... creating waves after waves of land price fever.

HCMC requires to prevent land price fever, property bubbles
https://vnexplorer.net/tag/land-price-fever

HCMC requires to prevent land price fever, property bubbles
https://sggpnews.org.vn/hochiminhcity/hcmc-requires-to-preve...

The State Bank of Việt Nam has asked for control over real estate loans of credit institutions to be enhanced, especially in areas showing signs of land price fever.
https://vietnamnews.vn/economy/518763/central-bank-asks-for-...