Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, thanh san
dang xay » dang van, van xay
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
cam luc » cau luc
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky dang xay hoi. hieu qua ((cam luc) or (cam xuc)) va ((thanh tai) or (doanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang xay hoi. hieu qua ((cam luc) OR (cam xuc)) va ((thanh tai) OR (doanh tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky dang xay hoi. hieu qua ((cam luc) or (cam xuc)) va ((thanh tai) or (doanh tai)) cua tre*.