Log Category of Documents: Item #1: Award Certificate, dated 15 Feb 66; Item #2: Award Certificate, dated 10 May 66; Item #3: Certificate #232, dated 8 Oct 67; Item #4: Letter of Appreciation, dated 4 Aug 67
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Keywords People Tran Giru, Nguyen Huu Khoi, Pham Cong Tang, Nguyen Huyen, Luu Quang Dong
Keywords Location Nam Thanh, Yen Thanh, Nghe An, Dong Thanh, Yen Lanh, Nghe An, Dai Thang, Lap Thach, Vinh Phuc
Keywords Objects N/A
Summarize Summary of four award certificates listing specific individuals and their commendations.