Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
nang cau » nang cao, hang cau, nang dau
thien va » thien van, tien va, thien tai
van hanh » van thanh, ban hanh, van anh
va triet » va thiet, va trien, ve triet
su sach » so sach, vu sach
va cham » va chat, va tham
va hanh » va thanh, va danh, ban hanh
y nang » ky nang, ly nang, v nang

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 y nang cau hoi. thien va cham soc ((va hanh) or (van hanh)) lai ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang cau hoi. thien va cham soc ((va hanh) OR (van hanh)) lai ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang cau hoi. thien va cham soc ((va hanh) or (van hanh)) lai ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang cau hoi. thien va cham soc ((va hanh) or (van hanh)) lai ((cua triet) OR (va triet))*.