Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
lanh hai » manh hai, thanh hai, lang chai
danh hai » dang hai, manh hai, danh hau
sach tu » sach thu, cach tu, sach ty
va cham » va chat, va tham
tu nang » tru nang, tu nong, tu nano
cua tre » cua te, cuu tre, cua triet
va cam » va cac, va cao, va cai
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach tu nang x hoi. hieu ((va cam) or (va cham)) tuc xa ((danh hai) OR (lanh hai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nang x hoi. hieu ((va cam) OR (va cham)) tuc xa ((danh hai) OR (lanh hai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tu nang x hoi. hieu ((va cam) or (va cham)) tuc xa ((danh hai) OR (lanh hai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach tu nang x hoi. hieu ((va cam) or (va cham)) tuc xa ((danh hai) OR (lanh hai)) cua tre*.