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

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

• 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) OR (van hanh)) vai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((sang mai) or (sang tai)) hoi. hieu ve cam xuc ((va hanh) OR (van hanh)) vai 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) OR (van hanh)) vai cuu tre*.