Perhaps you should try some spelling variations:
hang dieu » hoang dieu, dang dieu, hang dien
nang hai » hang hai, nang tai, bang hai
dang hai » dang khai, hang hai, dung hai
quoc ban » quoc bao, quoc lan, quoc quan
dieu cua » dieu tra
su sach » so sach, vu sach
xuc ban » duc ban, cuc ban, xuat ban
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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 y ((nang hai) or (dang hai)) hoi. lieu va cam ((xuc ban) OR (quoc ban)) hang dieu cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang hai) OR (dang hai)) hoi. lieu va cam ((xuc ban) OR (quoc ban)) hang dieu cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang hai) or (dang hai)) hoi. lieu va cam ((xuc ban) OR (quoc ban)) hang dieu cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang hai) or (dang hai)) hoi. lieu va cam ((xuc ban) OR (quoc ban)) hang dieu cua tre*.