Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thien van » thi van
tham thuc » nham thuc, pham thuc, tam thuc
van tham » van thanh, van tuan, van chat
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va dinh » van dinh, va kinh, vu dinh
va tinh » may tinh
cau cua » cau qua, ca cua, cu cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ky nang xa hoi. thien van tham thuc ((va dinh) or (va tinh)) cau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang xa hoi. thien van tham thuc ((va dinh) OR (va tinh)) cau cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang xa hoi. thien van tham thuc ((va dinh) or (va tinh)) cau cua tre*.