Perhaps you should try some spelling variations:
te sach » toc 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 dau » phan dau
hanh di » hanh de, hang di, danh di
co loi » co hoi
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty hang co loi. hieu ((van dau) or (van dao)) xuc va ((hanh di) OR (hanh vi)) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty hang co loi. hieu ((van dau) OR (van dao)) xuc va ((hanh di) OR (hanh vi)) cua vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty hang co loi. hieu ((van dau) or (van dao)) xuc va ((hanh di) OR (hanh vi)) cua vat*".