Perhaps you should try some spelling variations:
tu sang » thu sang, tu san, tu lang
cam cuu » cham cuu, cap cuu
danh di » danh du, xanh di, danh dien
danh vi » hanh vi, dinh vi, danh va
cuu ban » cuu van, cua ban, cuu san
cua tre » cua te, cuu tre, cua triet
sang ky » sang kyo, dang ky, tang ky
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sang ky ((hang va) or (hoang van)) hoi. hieu ve cam cuu ban ((danh vi) or (danh di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sang ky ((hang va) OR (hoang van)) hoi. hieu ve cam cuu ban ((danh vi) OR (danh di)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sang ky ((hang va) or (hoang van)) hoi. hieu ve cam cuu ban ((danh vi) or (danh di)) cua tre*.