Using loop and grep to deal with subfolders

use find:
find . -type d -name \*1h2s\* -exec grep search {}/* \;

find . search in current directory downwards -type d means only find directories -name \*1h2s\* match only directories with this name (you need to escape the * from the shell) -exec grep search {}/* \; run grep on each file in the found directories

NOTE: this will cause some error messages from grep if there are no files in the found directories or if there are sub-directories, you could add 2>/dev/null to the command if you didn't want to see them