Perhaps you should try some spelling variations:
khanh lai » khanh luan, thanh lap, thanh loi
xa khanh » xa thanh, van khanh, dat khanh
tu sach » thu sach, su sach, te sach
ty nang » ty xang, ty hang, ly nang
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
va cao » va cac, va co, va dao
x hoi » xa hoi, o hoi, x ho

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 ((ty nang) OR (ky nang)) x hoi. hieu ((ve cam) or (va cao)) tuc xa khanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (ky nang)) x hoi. hieu ((ve cam) OR (va cao)) tuc xa khanh lai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ky nang)) x hoi. hieu ((ve cam) or (va cao)) tuc xa khanh lai cua tre*".