There are a couple things I would recommend.
First is to make sure the field of the record you are searching for made it into the database. If you aren't familiar with database you may need some help from someone who is. I believe the database schema is still in isntaller/data/mysql/kohastructure.sql. You are probably looking for biblio.title or biblio.seriestitle or biblioitems.isbn or items.barcode.
The second thing is to make sure the search engines database got populated too. You are probably using the idzebra search engine. So make sure /usr/bin/zebrasrv is running, make sure you have run the bin/migration_tools/
rebuild_zebra.pl script right, and make sure the value you are searching for is in the idzebra database. The way I would do that is with the yaz-client. I have a simple yaz script for that purpose that looks like this:
set_cclfile /usr/local/koha3.2/etc/zebradb/ccl.properties
set_cqlfile /usr/local/koha3.2/etc/zebradb/cql.properties
authentication kohauser:zebrastripes
open unix:/usr/local/koha3.2/var/run/zebradb/bibliosocket
base biblios
format xml
elements marcxml
querytype ccl2rpn
find kw,wrdl="Maze Runner" and branch=703 and mc-itype,phr=F
show 2
delete
close
exit
Of course you will have to change the properties and socket paths to match your install. Then run this with `yaz-client -f /tmp/yaz-zebra-test.txt`.