Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
dang van » hoang van, hang va
tu sach » thu sach, su sach, te sach
cua tre » cua te, cua triet, dua tren
xuc van » duc van, luc van, xuc ban
va cham » va chat, va tham
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
sang ma » tang ma, nang ma, sang tao
cuu 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: tu sach ky ((sang ma) or (dang van)) hoi. hieu va cham xuc van hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((sang ma) OR (dang van)) hoi. hieu va cham xuc van hanh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((sang ma) or (dang van)) hoi. hieu va cham xuc van hanh vi ((cua tre) or (cuu tre))*.