Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
van cau » van dau, van hau, van chat
vai cua » dai cua, hai cua, lai cua
van dam » van nam, van dao, van dau
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
cua tre » cua te, cuu tre, cua triet

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) OR (toc sach)) ky dang ma hoa. hieu ((van dam) or (van cau)) duc va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky dang ma hoa. hieu ((van dam) OR (van cau)) duc va thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ky dang ma hoa. hieu ((van dam) or (van cau)) duc va thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ky dang ma hoa. hieu ((van dam) or (van cau)) duc va thanh vai cua tre*.