Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
danh vi » dinh vi, danh di, danh va
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
van hoi » van hoa, van hoc, van hoe
hieu ve » hieu va, hieu van
cam cuu » cham cuu, cap cuu
cuu ban » cuu van, cua ban, cuu san
tu sac » tu sach, tu cac, tu san
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 sac ((ky lang) OR (ky tang)) van hoi. hieu ve cam cuu ban ((danh vi) or (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky lang) OR (ky tang)) van hoi. hieu ve cam cuu ban ((danh vi) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky lang) OR (ky tang)) van hoi. hieu ve cam cuu ban ((danh vi) or (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky lang) OR (ky tang)) van hoi. hieu ve cam cuu ban ((danh vi) or (hanh vi)) cua tre*.