Perhaps you should try some spelling variations:
vua triet » cua triet, va triet, va trien
hoc sach » hoc sinh, hoc cac, hoc anh
hieu van » hieu va, thien van, lieu va
duoc van » duoc va, duc van, duoc ban
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
da duoc » tao duoc, hoa duoc
hanh va » hang va, hanh vi
van da » van dao, van dau, van dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky ((lang xa) or (nang x)) hoi. hieu van da duoc van hanh va vua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky ((lang xa) OR (nang x)) hoi. hieu van da duoc van hanh va vua triet.
• Adding a wildcard symbol may retrieve word variants: hoc sach ky ((lang xa) or (nang x)) hoi. hieu van da duoc van hanh va vua triet*.