Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh tai » thanh tai, hang tai, han tai
chat xuc » chat huu, cam xuc, chao xu
hieu va » lieu va, hieu qua
ky dang » ky nang, ky danh
hai hoi » dai hoi, hai moi, hai hoa
hai hai » khai hai, dai hai, tai hai
va chat » van chat, va phat, cao chat
xuc ban » duc ban, cuc ban, quoc ban
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky dang ((hai hoi) OR (hai hai)). hieu va chat xuc ban hanh tai ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang ((hai hoi) OR (hai hai)). hieu va chat xuc ban hanh tai ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky dang ((hai hoi) OR (hai hai)). hieu va chat xuc ban hanh tai ((cua te) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang ((hai hoi) OR (hai hai)). hieu va chat xuc ban hanh tai ((cua te) or (cua tu))*.