Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ky tang » ky nang, ky dang, kho tang
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
vu sai » vu hai, vu san, vu dai
sai ky » sac ky
ve cam » ve cham, ve cac, va cam
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sai ky tang ((van loi) or (van hoa)). hieu ve cam xuc ((va danh) or (van hanh)) le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ky tang ((van loi) OR (van hoa)). hieu ve cam xuc ((va danh) OR (van hanh)) le cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sai ky tang ((van loi) or (van hoa)). hieu ve cam xuc ((va danh) or (van hanh)) le cua tre*.