Perhaps you should try some spelling variations:
van chat » cao chat
hanh hai » thanh hai, nhanh hai, hang hai
quoc lan » nuoc luan, quoc quan, quoc danh
quoc ban » quoc bao, quoc quan, quoc binh
hieu van » hieu va, thien van, lieu va
hai cua » thai cua, dai cua, hoi cua
sach ky » sach y, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky

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: tu ((sach ky) OR (sac ky)) lang xa hoi. hieu van chat ((quoc ban) OR (quoc lan)) hanh hai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sac ky)) lang xa hoi. hieu van chat ((quoc ban) OR (quoc lan)) hanh hai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) lang xa hoi. hieu van chat ((quoc ban) OR (quoc lan)) hanh hai cua tre*.