Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
sang mai » sang ma, lang mai, hoang mai
hanh vai » hanh vi, hanh va, hanh tai
sang tai » hang tai, sang tao, tang tai
cac xuc » cam xuc, cac nuoc, chat xuc
cuu tre » cua tre, cau tren
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
xuc va » duc va, tuc va, luc va

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 ((sang mai) or (sang tai)) hoi. hieu va cac xuc va hanh vai ((cuu tre) OR (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((sang mai) OR (sang tai)) hoi. hieu va cac xuc va hanh vai ((cuu tre) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((sang mai) or (sang tai)) hoi. hieu va cac xuc va hanh vai ((cuu tre) OR (cau treo))".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((sang mai) or (sang tai)) hoi. hieu va cac xuc va hanh vai ((cuu tre) OR (cau treo))*.