How does poi replace variables in word?

I have a paragraph in word
Xxxxxxxxxxxxxxxxxxxxxxxx$ {name of tendering agency}, dididdxxxxxxxxxxxx test ${name of tendering agency}.
I want to replace the ${} package variable with the actual value
when reading the paragraph using poi, I cannot read the complete variable information of ${tendering agency name}. The debugging information is as follows:

clipboard.png

The

variable is fragmented. How does poi replace the complete variable?

Poi
Mar.04,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3a6a3-2c21d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3a6a3-2c21d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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