Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
lang van » dang van, tang van, hoang van
ban hanh » ban hang
sach thu » sach thue, sach thieu, sach tham
duoc ban » duc ban, quoc ban, buoc ban
hoi cua » hoi chuc
lai cua » dai cua, hai cua, lai chau
tu sach » thu sach, su sach, te sach
van lam » van nam
nang xa » nang x, lang xa, nang ma

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