This is "The Palm of a Tiny Hand" (Romaji: Chiisana Te no Hira, Japanese: 小さな手のひら) from Clannad Original Soundtrack, with lyrics (Romaji, Kanji+Furigana, English and Vietnamese).
This is "Memories of a Distant Journey" (Romaji: Tooi Tabi no Kioku, Japanese: 遠い旅の記憶) from CLANNAD Image Vocal Album "SoLaLaDo", with lyrics (Romaji, Kanji+Furigana, English and Vietnamese).
