Perhaps you should try some spelling variations:
lieu nghe » lieu nhe, lieu nghien, li nghe
lieu nha » lieu khoa, lieu phap, lieu tham
thu sach » thuat sach, thuoc sach, thu hoach
danh sai » dung sai, danh bat, danh dau
nang dai » nang dau, nang tai, lang dai
sai cua » dai cua, hai cua, lai cua
xa danh » va danh, dia danh, nam danh
tu sach » su sach, te sach, tu cach
dai hoi » dai hoc, dai hai, dai moi
cua tre » cua te, cuu tre, cua triet
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 (thu sach)) ky nang dai hoi. ((lieu nghe) OR (lieu nha)) nam thu xa danh sai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang dai hoi. ((lieu nghe) OR (lieu nha)) nam thu xa danh sai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang dai hoi. ((lieu nghe) OR (lieu nha)) nam thu xa danh sai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang dai hoi. ((lieu nghe) OR (lieu nha)) nam thu xa danh sai cua tre*.