Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
lang van » dang van, tang van, hoang van
cua tre » cuu tre, cua triet, dua tren
duc ban » duc tan, duc van, dua ban
lam duc » lam duoc, pham duc, nam duoc
van lam » van nam
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
vang xa » lang xa, mang xa, ang xa
cua te » cua tu

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 ly ((vang xa) or (lang van)) hoi. hieu van lam duc ban hanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly ((vang xa) OR (lang van)) hoi. hieu van lam duc ban hanh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ly ((vang xa) or (lang van)) hoi. hieu van lam duc ban hanh vi ((cua tre) or (cua te))*.