Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thuoc ban » thuoc tan, thuoc dang, thu ban
luu truc » luu tru, cau truc, cuu thuc
thanh ve » hanh ve, thanh va, thanh vien
tu sach » thu sach, su sach, te sach
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
he nam » nghe nam
ma hoi » mai hoi, xa hoi, ma hoa
ve luu » ke luu, vi luu

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) or (thu hoach)) ky tang ma hoi. hieu ((he nam) or (ha nam)) thuoc ban thanh ve luu truc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ky tang ma hoi. hieu ((he nam) OR (ha nam)) thuoc ban thanh ve luu truc.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ky tang ma hoi. hieu ((he nam) or (ha nam)) thuoc ban thanh ve luu truc*.