Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
hieu ha » hieu hoa, hieu va, hieu ca
xa danh » dia danh, nam danh, van danh
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang ma hoi. hieu ha nam thu ((xa danh) or (va danh)) sai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. hieu ha nam thu ((xa danh) OR (va danh)) sai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. hieu ha nam thu ((xa danh) or (va danh)) sai cua triet*.