Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
ban hanh » ban hang
duc ban » duc tan, duc van, dua ban
nang xa » nang x, lang xa, nang ma
cua tre » cuu tre, cua triet, dua tren
su sai » su tai, su hai, su dai
va cao » va cac, va co, va dao
sai ky » sac ky
va cam » va cham, va cac, va cai
cua te » cua tu

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 xa hoi. hieu ((va cam) OR (va cao)) 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 xa hoi. hieu ((va cam) OR (va cao)) duc ban hanh hai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky nang xa hoi. hieu ((va cam) OR (va cao)) duc ban hanh hai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sai ky nang xa hoi. hieu ((va cam) OR (va cao)) duc ban hanh hai ((cua tre) or (cua te))*.