Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nam danh » nam dinh, nam dan
cua tre » cua te, cuu tre, dua tren
xa danh » va danh, dia danh, van danh
hieu le » hieu ve, hieu he, hieu ly
nang ma » tang ma, sang ma, nang cao
sac ky » cac ky, sai ky
le nam » ly nam, he nam, le na
ma hoi » mai hoi, xa hoi, ma hoa
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ma hoi. hieu le nam thu ((xa danh) or (nam danh)) sai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ma hoi. hieu le nam thu ((xa danh) OR (nam danh)) sai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ma hoi. hieu le nam thu ((xa danh) or (nam danh)) sai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ma hoi. hieu le nam thu ((xa danh) or (nam danh)) sai ((cua tre) OR (cua triet))*.