Perhaps you should try some spelling variations:
lieu nghe » lieu nhe, lieu nghien, lieu nha
nghe nam » nghe lam, nghiep nam, nghe nano
thu sach » thuat sach, thuoc sach, thu hoach
lai cua » dai cua, hai cua, lai chau
sai cua » dai cua, hai cua, bai cua
xa danh » va danh, dia danh, nam danh
tu sach » su sach, te sach, tu cach
nang ma » tang ma, sang ma, nang cao
thu xa » thu xac, thu ha, thu xe
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) or (thu sach)) ky nang ma hoi. lieu nghe nam thu xa danh ((sai cua) OR (lai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang ma hoi. lieu nghe nam thu xa danh ((sai cua) OR (lai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang ma hoi. lieu nghe nam thu xa danh ((sai cua) OR (lai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang ma hoi. lieu nghe nam thu xa danh ((sai cua) OR (lai cua)) tre*.