Perhaps you should try some spelling variations:
nang hoc » nang doc, nang luc, dong hoc
hanh lai » hanh lam, hanh tai, thanh lap
cua tre » cua te, cuu tre, cua triet
hoc hoi » hoc khoi, hoc hoa, hoc noi
va cham » va tham
lai cua » dai cua, hai cua, lai chau
va chat » van chat, va phat, cao chat
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
xuc va » tuc va, luc va, xac va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang hoc hoi. thien ((va cham) OR (va chat)) ((xuc va) or (duc va)) hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang hoc hoi. thien ((va cham) OR (va chat)) ((xuc va) OR (duc va)) hanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang hoc hoi. thien ((va cham) OR (va chat)) ((xuc va) or (duc va)) hanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang hoc hoi. thien ((va cham) OR (va chat)) ((xuc va) or (duc va)) hanh lai cua tre*.