'Felice Chanukkà' is an Italian equivalent of 'Happy Hanukkah'. 'Chanukkà' also is known as 'Festa delle Luci' in Italian. That means 'Festival of the Lights' in English.
Happy Hanukkah = Khanukkah Same'akh" (חנוכה שמח). Chag Chanukkah Sameach = khag Khanukkah same'akh (חג חנוכה שמח) Funny thing ... except for the weekly Sabbath, the Hebrew...
You can either say "Ah Freilichen Hanukkah" or "Ah Lichtige Hanukkah" (literally, "A bright Hanukkah").
счастливые отпуска (schatlivyeh otpuska)
Христос воскрес Hristos voskres