Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
lam xuc » cam xuc, lam duoc
van lam » van nam
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
cuu tre » cua tre, cau tren, cau treo
ang xa » mang xa, dang xay, hoang xa
di cuu » di cau, di cua, dinh cuu

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 ty ((((ang xa) or (nang ma))) or (lang xa)) hoi. hieu van lam xuc van hanh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((((ang xa) OR (nang ma))) OR (lang xa)) hoi. hieu van lam xuc van hanh di cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((((ang xa) or (nang ma))) or (lang xa)) hoi. hieu van lam xuc van hanh di cuu tre*.