Perhaps you should try some spelling variations:
vat hanh » vat thanh, van hanh, va hanh
su sach » so sach, vu sach
ve cham » va cham, vu cham, ve chim
hanh di » hanh vi, hanh de, hang di
ve chat » va chat, van chat
cuu tre » cua tre, cau tren, cau treo
sach v » sach va, sach y, sach 2
ve cam » ve cac, va cam, ve cai
v nang » va nang, vu nang, van nang
di cuu » di cau, di cua, dinh cuu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach v nang x hoi. hieu ((ve cam) or (((ve cham) OR (ve chat)))) thuc vat hanh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang x hoi. hieu ((ve cam) OR (((ve cham) OR (ve chat)))) thuc vat hanh di cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach v nang x hoi. hieu ((ve cam) or (((ve cham) OR (ve chat)))) thuc vat hanh di cuu tre".
• Adding a wildcard symbol may retrieve word variants: su sach v nang x hoi. hieu ((ve cam) or (((ve cham) OR (ve chat)))) thuc vat hanh di cuu tre*.