Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
chat xuc » chat huu, cam xuc, chao xu
sang tao » hang tai
ban hang » ngan hang
va thanh » gia thanh, ban thanh, va tinh
hai cuu » hai cua, hai chu, hai cuc
va chat » van chat, va phat, cao chat
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky ((nang cao) or (sang tao)) hoa. hieu va chat xuc ((va thanh) or (ban hang)) hai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky ((nang cao) OR (sang tao)) hoa. hieu va chat xuc ((va thanh) OR (ban hang)) hai cuu tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach ky ((nang cao) or (sang tao)) hoa. hieu va chat xuc ((va thanh) or (ban hang)) hai cuu tre*.