Perhaps you should try some spelling variations:
dang xay » dang van, van xay
cua tre » cua te, cuu tre, cua triet
dinh vi » dinh ve, dinh viet, dinh tri
danh vi » hanh vi, danh di, danh va
cuc ban » cua ban, cac ban, cuu ban
cam cuc » cam xuc, cham cuu, pham cuc
hieu ve » hieu va, hieu van
dang ha » dong ha, dung ha, lang ha
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky ((dang xay) or (dang ha)) hoi. hieu ve cam cuc ban ((danh vi) or (dinh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((dang xay) OR (dang ha)) hoi. hieu ve cam cuc ban ((danh vi) OR (dinh vi)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((dang xay) or (dang ha)) hoi. hieu ve cam cuc ban ((danh vi) or (dinh vi)) cua tre*.