Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham thuc » nham thuc, pham thuc, tam thuc
cham tuc » nham thuc, pham thuc, cham soc
toc sach » hoc sach, doc sach, thuoc sach
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang x hoi. hieu ve ((cham tuc) or (tham thuc)) ((va hanh) OR (va danh)) dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang x hoi. hieu ve ((cham tuc) OR (tham thuc)) ((va hanh) OR (va danh)) dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang x hoi. hieu ve ((cham tuc) or (tham thuc)) ((va hanh) OR (va danh)) dai cua triet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang x hoi. hieu ve ((cham tuc) or (tham thuc)) ((va hanh) OR (va danh)) dai cua triet*.