Perhaps you should try some spelling variations:
lieu nghe » lieu nhe, lieu nghien, lieu nha
nghe nam » nghe lam, nghiep nam, nghe nano
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
sai cua » hai cua, lai cua, bai cua
thu xa » thu xac, thu ha, thu ba

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 ky nang cao hoi. lieu nghe nam ((thu xa) or (thu xe)) danh ((sai cua) OR (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang cao hoi. lieu nghe nam ((thu xa) OR (thu xe)) danh ((sai cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang cao hoi. lieu nghe nam ((thu xa) or (thu xe)) danh ((sai cua) OR (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang cao hoi. lieu nghe nam ((thu xa) or (thu xe)) danh ((sai cua) OR (dai cua)) te*.