Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
sach thu » sach thue, sach thieu, sach tham
tang mai » tang ma, tang tai, lang mai
dau truc » cau truc, dai truc, doan truc
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
van anh » tuan anh, van minh
mai hoi » mai khoi, dai hoi, lai hoi
va dau » va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach y) or (sach thu)) tang mai hoi. lieu va dau truc ((van anh) or (van thanh)) vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach y) OR (sach thu)) tang mai hoi. lieu va dau truc ((van anh) OR (van thanh)) vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach y) or (sach thu)) tang mai hoi. lieu va dau truc ((van anh) or (van thanh)) vai cuu tre*.