Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
hang co » hang cho, hang ca, nang co
van cau » van hau, van chat, toan cau
van dau » van dao, phan dau
cua tre » cua te, cuu tre, cua triet
co loi » co hoi
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty hang co loi. hieu ((van cau) OR (van dau)) thuc van hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty hang co loi. hieu ((van cau) OR (van dau)) thuc van hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty hang co loi. hieu ((van cau) OR (van dau)) thuc van hanh vi cua tre*.