Perhaps you should try some spelling variations:
lanh hai » manh hai, thanh hai, lang chai
quoc ban » quoc bao, quoc lan, quoc quan
su sach » so sach, vu sach
hai cuu » hai cua, hai chu, hai cuc
duc ban » duc tan, duc van, dua ban
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
lang ha » long ha
lang xa » dang xay, lang van
va cam » va cham, va cac, va cao

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 sach ky ((lang xa) OR (lang ha)) hoi. lieu va cam ((quoc ban) OR (duc ban)) lanh hai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((lang xa) OR (lang ha)) hoi. lieu va cam ((quoc ban) or (duc ban)) lanh hai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((lang xa) OR (lang ha)) hoi. lieu va cam ((quoc ban) or (duc ban)) lanh hai cuu tre*.