Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
cham tuc » nham thuc, pham thuc, tham thuc
danh vi » hanh vi, dinh vi, danh di
xa danh » va danh, dia danh, nam danh
su sach » so sach, vu sach
hieu ve » hieu va
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
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) or (thuoc sach)) ky dang xa hoi. ((hieu ve) or (hieu van)) cham tuc xa danh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuoc sach)) ky dang xa hoi. ((hieu ve) OR (hieu van)) cham tuc xa danh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuoc sach)) ky dang xa hoi. ((hieu ve) or (hieu van)) cham tuc xa danh vi cua triet*.