Perhaps you should try some spelling variations:
lang chai » lang ha, lang cua, lang phi
lanh hai » manh hai, thanh hai, lanh dao
so sach » so sanh, bo sach, co sach
xuc ban » duc ban, cuc ban, quoc ban
sach ky » sac ky, sach y, sach ty
van lam » van nam
van cam » van nam, van cau, van dam
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
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: so sach ky dang xa hoi. hieu ((van cam) or (van lam)) xuc ban ((lanh hai) OR (lang chai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky dang xa hoi. hieu ((van cam) OR (van lam)) xuc ban ((lanh hai) OR (lang chai)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky dang xa hoi. hieu ((van cam) or (van lam)) xuc ban ((lanh hai) OR (lang chai)) cua tre*".