Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
cuu tre » cua tre, cau tren, cau treo
sach v » sach va, sach 2, sach vay
di cuu » di cau, di cua, dinh cuu
x hoi » xa hoi, o hoi, x ho
ve am » va am

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) OR (sach y)) nang x hoi. hieu ve am thuc van hanh di cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach v) OR (sach y)) nang x hoi. hieu ve am thuc van hanh di cuu tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach v) OR (sach y)) nang x hoi. hieu ve am thuc van hanh di cuu tre*.