Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
nghe nam » nghe lam, nghiep nam, nghe nano
danh sai » dung sai, danh bat, danh dau
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
xa danh » va danh, dia danh, nam danh
cua tre » cua te, cuu tre, dua tren
tu sach » thu sach, su sach, tu cach
ma hoi » mai hoi, xa hoi, ma hoa
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: ((tu sach) or (te sach)) ky nang ma hoi. hieu nghe nam thu xa danh sai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang ma hoi. hieu nghe nam thu xa danh sai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang ma hoi. hieu nghe nam thu xa danh sai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang ma hoi. hieu nghe nam thu xa danh sai ((cua tre) OR (cua triet))*.