Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh sai » dung sai, danh bat, danh dau
sang tao » hang tai
cua tre » cua te, cuu tre, dua tren
xa danh » va danh, dia danh, nam danh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu he » hieu ve, hiem he, hieu le
he nam » ha nam, nghe nam
thu xa » thu xac, thu ha, thu xe

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

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