Perhaps you should try some spelling variations:
tu sach » thu sach, te sach, tu cach
xa hanh » xa thanh, xa khanh, va hanh
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
xuc xa » tuc xa, buc xa
vi cua » vai cua, di cua
va cam » va cac, va cao, va cai

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) OR (su sach)) ky nang xa hoi. hieu ((va cam) or (va cham)) xuc xa hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang xa hoi. hieu ((va cam) OR (va cham)) xuc xa hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky nang xa hoi. hieu ((va cam) or (va cham)) xuc xa hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky nang xa hoi. hieu ((va cam) or (va cham)) xuc xa hanh vi cua tre*.