Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
dai cuu » dai cua, dai huu
cuu tre » cua tre, cau tren, cau treo
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: vu sach ky nang xa hoi. hieu ((ve cam) or (va cac)) xuc ((va danh) or (va hanh)) dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang xa hoi. hieu ((ve cam) OR (va cac)) xuc ((va danh) OR (va hanh)) dai cuu tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. hieu ((ve cam) or (va cac)) xuc ((va danh) or (va hanh)) dai cuu tre*.