Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
nang mai » nang ma, nang tai, lang mai
tham soc » cham soc, tham nuoc, thai son
va tinh » may tinh
su sach » so sach, vu sach
va danh » va dinh, va dan, va hanh
va tham » van tham, va cham, va thanh
mai hoi » mai khoi, dai hoi, lai hoi
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 mai hoi. lieu va tham soc ((va danh) or (va tinh)) di ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang mai hoi. lieu va tham soc ((va danh) OR (va tinh)) di ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang mai hoi. lieu va tham soc ((va danh) or (va tinh)) di ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang mai hoi. lieu va tham soc ((va danh) or (va tinh)) di ((cua triet) OR (su triet))*.