Perhaps you should try some spelling variations:
ban hanh » ban hang
dang cay » dang xay, dang ca, dung cay
dang cac » dung cac, bang cac, dong cac
hieu van » hieu va, thien van, lieu va
te sach » toc sach
hoi cua » hoi chuc
vai cua » dai cua, hai cua, lai cua
van cam » van nam, van lam, van cau
cuc ban » cua ban, cac ban, cuu ban
cam cuc » cam xuc, cham cuu, pham cuc

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: te sach y ((dang cay) OR (dang cac)) phoi. hieu van cam cuc ban hanh ((vai cua) OR (hoi cua)) te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((dang cay) OR (dang cac)) phoi. hieu van cam cuc ban hanh ((vai cua) or (hoi cua)) te~".
• Adding a wildcard symbol may retrieve word variants: te sach y ((dang cay) OR (dang cac)) phoi. hieu van cam cuc ban hanh ((vai cua) or (hoi cua)) te*.