Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
hai cua » thai cua, dai cua, hoi cua
va danh » va dinh, va dan, va hanh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cao hoi » co hoi, cao hoc, tao hoi
cam luc » cam xuc, cau luc
ve cam » ve cham, ve cac, va cam

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 nang ((cao hoi) OR (cau hoi)). hieu ve cam luc ((va thanh) or (va danh)) hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((cao hoi) OR (cau hoi)). hieu ve cam luc ((va thanh) OR (va danh)) hai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((cao hoi) OR (cau hoi)). hieu ve cam luc ((va thanh) or (va danh)) hai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((cao hoi) OR (cau hoi)). hieu ve cam luc ((va thanh) or (va danh)) hai cua triet*.