Perhaps you should try some spelling variations:
manh hai » lanh hai, minh hai, thanh hai
danh hai » dang hai, lanh hai, danh hau
te sach » toc sach
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
xay hoi » xa hoi, tay hoi, cay phoi
ky danh » ky anh, ky dang
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 danh) or (ky nang)) xay hoi. hieu va cam duc ban ((danh hai) OR (manh hai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky danh) OR (ky nang)) xay hoi. hieu va cam duc ban ((danh hai) OR (manh hai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky danh) or (ky nang)) xay hoi. hieu va cam duc ban ((danh hai) OR (manh hai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky danh) or (ky nang)) xay hoi. hieu va cam duc ban ((danh hai) OR (manh hai)) cua tre*.