Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
ban trong » bai trong, ban tuong, ben trong
trong tin » thong tin, trong tan, trong tieng
cac trong » cac truong, cay trong, tac trong
nguoi ban » nguoi san, nguoi dan, nguoi ba
me nguoi » ma nguoi, le nguoi, ke nguoi
sach bai » sach dao, cac bai, sach xa
giai cac » gian cac, giai ca, giai cao
tu sach » thu sach, su sach, te sach
bai me » ba me, bai mo, mai me
ha de » hac de, hat de, ha le
va de » va do, va le

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 bai me nguoi ban trong tin ) or ( thuat sach ((ha de) OR (va de)) giai cac trong tin ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach bai me nguoi ban trong tin ) OR ( thuat sach ((ha de) OR (va de)) giai cac trong tin ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu sach bai me nguoi ban trong tin ) or ( thuat sach ((ha de) OR (va de)) giai cac trong tin ))*".