Perhaps you should try some spelling variations:
sang mai » sang ma, lang mai, hoang mai
sang tai » hang tai, sang tao, tang tai
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
va cuu » va cau, va chu, va huu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((sang mai) or (sang tai)) hoi. hieu ve cam xuc va hanh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((sang mai) OR (sang tai)) hoi. hieu ve cam xuc va hanh va cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((sang mai) or (sang tai)) hoi. hieu ve cam xuc va hanh va cuu tre*.