Perhaps you should try some spelling variations:
sach tham » sach nha
chau tre » chay tren, chau tho, cho tre
hanh lai » hanh lam, hanh tai, thanh lap
sang tao » hang tai
sach thu » sach thue, sach thieu, cach thuc
ve chat » van chat
va hanh » van hanh, va thanh, va danh
va chat » van chat, va phat, cao chat
tao hoi » tao khoi, tao boi, tay hoi

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 thu) OR (sach tham)) sang tao hoi. hieu ((va chat) or (ve chat)) duc va hanh lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thu) OR (sach tham)) sang tao hoi. hieu ((va chat) OR (ve chat)) duc va hanh lai chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach thu) OR (sach tham)) sang tao hoi. hieu ((va chat) or (ve chat)) duc va hanh lai chau tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach thu) OR (sach tham)) sang tao hoi. hieu ((va chat) or (ve chat)) duc va hanh lai chau tre*.