Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
luu truc » luu tru, cau truc, cuu thuc
thanh vi » hanh vi, thanh va, thanh ve
cuc ban » cua ban, cac ban, cuu ban
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
va cao » va cac, va co, va dao
vi luu » vi lua
va cam » va cham, va cac, 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: tu sach ky ((lang xa) or (nang x)) hoi. hieu ((va cam) or (va cao)) cuc ban thanh vi luu truc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((lang xa) OR (nang x)) hoi. hieu ((va cam) OR (va cao)) cuc ban thanh vi luu truc.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((lang xa) or (nang x)) hoi. hieu ((va cam) or (va cao)) cuc ban thanh vi luu truc*.