Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
su triet » su viet, su tien, ve triet
thi hang » thi hanh, thi nang, thi hong
sach thi » sach thu, sach tai, sach thieu
cua tre » cua te, cuu tre, cua triet
xuc ban » duc ban, cuc ban, quoc ban
su sach » so sach, vu sach
hang xa » hoang xa, hang va, hang ca
va cham » va chat, va tham
va cam » va cac, va cao, va cai

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 thi hang xa hoi. hieu ((va cam) OR (va cham)) xuc ban thanh vai ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thi hang xa hoi. hieu ((va cam) OR (va cham)) xuc ban thanh vai ((cua tre) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thi hang xa hoi. hieu ((va cam) OR (va cham)) xuc ban thanh vai ((cua tre) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: su sach thi hang xa hoi. hieu ((va cam) OR (va cham)) xuc ban thanh vai ((cua tre) or (su triet))*.