Perhaps you should try some spelling variations:
dang xay » dang van, van xay
vu sach » vu bach, su sach, vu khach
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
y dang » ky dang, 2 dang, _ dang
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y dang xay hoi. hieu ve cham ((duc va) or (thuc vat)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y dang xay hoi. hieu ve cham ((duc va) OR (thuc vat)) hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach y dang xay hoi. hieu ve cham ((duc va) or (thuc vat)) hanh di cua tre*.