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
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty tang » tay tang, ty xang, ty hang
tang ma » mang may, tang van
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 ty tang ma hoi. hieu van ((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 ty tang ma hoi. hieu van ((cam tu) OR (cam xuc)) van hanh vi cua triet*.