Perhaps you should try some spelling variations:
dat khanh » van khanh, duy khanh
tang van » dang van, hoang van, trong van
tu sach » thu sach, su sach, te sach
lai cua » dai cua, hai cua, lai chau
xa hanh » xa thanh, xa khanh, va hanh
cam tuc » cam xuc, cam tu, nam thuc
cua tre » cua te, cuu tre, cua triet
tang ma » mang may
sach 7 » sach y, sach 2
va cam » va cham, va cac, va cao

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 7 ((tang ma) OR (tang van)) hoi. lieu va cam tuc ((xa hanh) or (dat khanh)) lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach 7 ((tang ma) OR (tang van)) hoi. lieu va cam tuc ((xa hanh) OR (dat khanh)) lai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach 7 ((tang ma) OR (tang van)) hoi. lieu va cam tuc ((xa hanh) or (dat khanh)) lai cua tre*".