Perhaps you should try some spelling variations:
ban danh » ban doanh, ban hanh, ban dan
cua tre » cua te, cuu tre, cua triet
ky lang » ky dang, ky tang, tay lang
van hoc » van hoa
hieu ve » hieu va, hieu van
danh vi » hanh vi, dinh vi, danh di
cam cuu » cham cuu
vi cua » vai cua, di cua
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 lang) or (ky nang)) van hoc. hieu ve ((cam cuu) or (cap cuu)) ban danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky lang) OR (ky nang)) van hoc. hieu ve ((cam cuu) OR (cap cuu)) ban danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky lang) or (ky nang)) van hoc. hieu ve ((cam cuu) or (cap cuu)) ban danh vi cua tre*.