Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
lam cuu » lam chu, lam cua, cham cuu
van lam » van nam
sach ly » sach y, sach ty, sach hay
sach lo » sach dao, sach doi, sach hoi
di cua » dai cua, doi cua, de cua
cua cu » cua chu, cua cau, cua su
x hoi » xa hoi, o hoi, x ho

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 ly) OR (sach lo)) nang x hoi. hieu van lam cuu ((van hanh) OR (ban hanh)) di cua cu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ly) or (sach lo)) nang x hoi. hieu van lam cuu ((van hanh) OR (ban hanh)) di cua cu~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ly) or (sach lo)) nang x hoi. hieu van lam cuu ((van hanh) OR (ban hanh)) di cua cu*.