I'm afraid that the first several lines are a complete failure.
Please note that phrases before "Hana" are a lengthy adjective clause!
So if you do not mind, I'd like to give you some corrections as follows:
(Shiawase wo motarasu to iwareteru) They say it brings you happiness
(Dokoka do hissori saite iru) and is blooming graciously somewhere.
(Hana wo Sakashite...) It's that kind of flower
(Hana wo Sakashite imasu.) that I'm looking for.
OK. Here is the link.