Perhaps you should try some spelling variations:
"battle of dien diao phu" » "battle of dien giao phu", "battle of dien dia phu", "battle of dien dan phu", "battle of dien dao phu", "battle of dien gian phu", "battle of dien dinh phu"
"battle of de giai phu" » "battle of de giai phau", "battle of de gian phu", "battle of de giai phap", "battle of dan giai phu", "battle of kem giai phu"
"battle of dien gia phu" » "battle of dien giao phu", "battle of dien giai phu", "battle of dien dia phu", "battle of dien gian phu", "battle of dien gia pha", "battle of dien gia phi"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("battle of de giai phu") or ("battle of dien gia phu"))) or ("battle of dien diao phu"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("battle of de giai phu") OR ("battle of dien gia phu"))) OR ("battle of dien diao phu"))*.
• Removing quotes may allow a broader search: (((( battle of de giai phu ) or ( battle of dien gia phu ))) or ( battle of dien diao phu ))*.