Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh hai » thanh hai, nhanh hai, hang hai
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
cua tre » cuu tre, cua triet, dua tren
su sai » su tai, su hai, su dai
sai ky » sac ky
va cam » va cham, va cac, va cao
cua te » cua tu
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: su sai ky nang x hoi. hieu va cam duc ban hanh hai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky nang x hoi. hieu va cam duc ban hanh hai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sai ky nang x hoi. hieu va cam duc ban hanh hai ((cua tre) or (cua te))*.