Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, nang ma, mang xa
lang xa » dang xay, lang van
lang ha » long ha
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua

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

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