Perhaps you should try some spelling variations:
ban hanh » ban hang
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
ky mang » ky nang, ke mang, ky dang
may hoa » may khoa, ma hoa, day hoa
sach ky » sac ky, sach y, sach ty
di cua » dai cua, doi cua, de cua
va cao » va cac, va co, va dao
ve cao » ve bao, ve cac, ve co
cua te » cua tu

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 ky mang may hoa. hieu ((ve cao) OR (va cao)) duc ((ban hanh) or (va thanh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky mang may hoa. hieu ((ve cao) OR (va cao)) duc ((ban hanh) OR (va thanh)) di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky mang may hoa. hieu ((ve cao) OR (va cao)) duc ((ban hanh) or (va thanh)) di cua te*".