Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
toc sach » hoc sach, doc sach, thuoc sach
thu nang » thi nang, thu hang, thu bang
hanh lai » hanh lam, hanh tai, thanh loi
sach thu » sach thue, sach thieu, sach tham
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, duc va
va cam » va cham, va cac, va cao
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: toc sach thu nang x hoi. lieu va cam ((tuc va) or (tuc xa)) ((hanh lai) OR (thanh lap)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thu nang x hoi. lieu va cam ((tuc va) OR (tuc xa)) ((hanh lai) OR (thanh lap)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach thu nang x hoi. lieu va cam ((tuc va) or (tuc xa)) ((hanh lai) OR (thanh lap)) cua tre".
• Adding a wildcard symbol may retrieve word variants: toc sach thu nang x hoi. lieu va cam ((tuc va) or (tuc xa)) ((hanh lai) OR (thanh lap)) cua tre*.