Perhaps you should try some spelling variations:
sang kyo » sang ky, sang tao, dang ky
kyo hang » ly hang, cho hang, ty hang
tu sang » thu sang, tu san, tu lang
hieu ve » hieu va, hieu van
cam cuu » cham cuu, cap cuu
cuu ban » cuu van, cua ban, cuu san
danh vi » hanh vi, dinh vi, danh va
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
va hoi » xa hoi, va hoc, va hoa
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 kyo hang va 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 kyo hang va hoi. hieu ve cam cuu ban ((danh vi) OR (danh di)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sang kyo hang va hoi. hieu ve cam cuu ban ((danh vi) or (danh di)) cua tre*.