Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hieu van » hieu va, thien van, lieu va
ban xanh » ban hanh, ban anh, ban banh
buoc ban » quoc ban, buon ban, duoc ban
lam buoc » lam duoc, nam buoc, lam thuoc
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach y, sach ty
van lam » van nam
xanh di » danh di, vanh dai, xanh tai
su sach » so sach, vu sach
ang xa » mang xa, dang xay, hoang xa
di va » dai va, di vao, doi va

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 ky ((((ang xa) or (lang xa))) or (nang x)) hoi. hieu van lam buoc ban xanh di va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((((ang xa) OR (lang xa))) OR (nang x)) hoi. hieu van lam buoc ban xanh di va triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((((ang xa) or (lang xa))) or (nang x)) hoi. hieu van lam buoc ban xanh di va triet*.