Perhaps you should try some spelling variations:
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua cac, qua ca
va hanh » van hanh, va thanh, va danh
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
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 y nang xa hoi. hieu ((qua cam) or (cua cac)) tuc ((va hanh) or (va tinh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((qua cam) OR (cua cac)) tuc ((va hanh) OR (va tinh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((qua cam) or (cua cac)) tuc ((va hanh) or (va tinh)) di cua tre*.