Perhaps you should try some spelling variations:
cap nuoc » dat nuoc
quan anh » quan hanh, quang anh, tuan anh
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
sach ky » sach y, sach ty, sach kem
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
va cap » va cac, va dap, va cao

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 xa hoi. hieu va cap nuoc ((van hanh) or (quan anh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang xa hoi. hieu va cap nuoc ((van hanh) OR (quan anh)) dai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) nang xa hoi. hieu va cap nuoc ((van hanh) or (quan anh)) dai cua tre*.