Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
cam tuc » nam thuc, dam thuc, nam truc
ma hoi » mai hoi, xa hoi, ma hoa
cam tu » cam thu, nam tu, dam tu
vi cua » vai cua, di cua

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 tang ma hoi. hieu van ((((cam tuc) OR (cam tu))) or (cam xuc)) van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky tang ma hoi. hieu van ((((cam tuc) OR (cam tu))) OR (cam xuc)) van hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky tang ma hoi. hieu van ((((cam tuc) OR (cam tu))) or (cam xuc)) van hanh vi cua triet*".