Perhaps you should try some spelling variations:
nang doc » nang luc
thien va » thien van, tien va, thien tai
hanh dai » hanh tai, hanh dao, vanh dai
sach ky » sach y, sach ty, sach kem
doc hoi » duoc hoi, hoc hoi, doc hai
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
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 ((sach ky) or (sac ky)) nang doc hoi. thien va cham ((xuc va) or (duc va)) hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang doc hoi. thien va cham ((xuc va) OR (duc va)) hanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) nang doc hoi. thien va cham ((xuc va) or (duc va)) hanh dai cua tre*.