Perhaps you should try some spelling variations:
sach kem » hanh kem
van manh » van minh, van anh, van hanh
ban manh » ban hanh, ban mach, ban anh
hoi cua » hoi chuc
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
sac ky » cac ky, sai ky
va cam » va cham, va cac, 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 kem) or (sac ky)) lang xa hoi. hieu va cam duc ((ban manh) or (van manh)) hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sac ky)) lang xa hoi. hieu va cam duc ((ban manh) OR (van manh)) hoi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sac ky)) lang xa hoi. hieu va cam duc ((ban manh) or (van manh)) hoi cua tre*.