Perhaps you should try some spelling variations:
gap nguoi » gian nguoi, dao nguoi, tay nguoi
nguoi dao » nguoi tay
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
hanh de » hanh ve
hieu ve » hieu va, hieu van
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve gap » viet gap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((nang xa) OR (nang ma)) hoi. hieu ve gap nguoi dao ((hanh de) OR (hanh kem)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky ((nang xa) OR (nang ma)) hoi. hieu ve gap nguoi dao ((hanh de) or (hanh kem)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sac ky ((nang xa) OR (nang ma)) hoi. hieu ve gap nguoi dao ((hanh de) or (hanh kem)) cua tre*.