Perhaps you should try some spelling variations:
cham sac » cham soc, pham sach, cap sac
van cham » van chat, van tham, va cham
hieu van » hieu va, thien van, lieu va
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
sac van » cac van, san van, sat van
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
xang xa » mang xa, ang xa, dang xay
cua tre » cua te, cuu tre, cua triet

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 ty ((xang xa) or (lang xa)) hoi. hieu van cham sac van ((hanh di) or (hanh de)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((xang xa) OR (lang xa)) hoi. hieu van cham sac van ((hanh di) OR (hanh de)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty ((xang xa) or (lang xa)) hoi. hieu van cham sac van ((hanh di) or (hanh de)) cua tre*.