Perhaps you should try some spelling variations:
cham cac » cho cac, cham soc, cua cac
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cac van » cac dan
hanh di » hang di, danh di, xanh di
hanh de » hanh ve, hanh kem
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 hoi. hieu ve cham cac van ((((hanh di) or (hanh vi))) or (hanh de)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang xa hoi. hieu ve cham cac van ((((hanh di) OR (hanh vi))) OR (hanh de)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty xang xa hoi. hieu ve cham cac van ((((hanh di) or (hanh vi))) or (hanh de)) cua tre*.