Perhaps you should try some spelling variations:
doanh hai » doanh tai, doan hai, doanh ha
ban doanh » van doanh, san doanh, ban danh
te sach » toc sach
ky dang » ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
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: te sach ((ky dang) or (ky nang)) xay hoi. hieu va cam duc ban doanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky dang) OR (ky nang)) xay hoi. hieu va cam duc ban doanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((ky dang) or (ky nang)) xay hoi. hieu va cam duc ban doanh hai cua tre*.