Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van ban
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
van anh » van thanh, tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
ve cam » ve cham, ve cac, va cam
di cua » dai cua, doi cua, de cua
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. hieu ((ve cam) or (va cao)) xuc ((van hanh) or (van anh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu ((ve cam) OR (va cao)) xuc ((van hanh) OR (van anh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ((ve cam) or (va cao)) xuc ((van hanh) or (van anh)) di cua tre*.