Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
thuc dan » thuc hanh, thuc vat
dinh cuu » dinh chi
truc ban » thuc ban, truc dan, truc van
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
ty nang » ky nang, ty xang, ty hang
sach ty » sach y, sach tu, sach thu
va dau » va dao
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang x hoi. lieu va dau ((truc ban) or (((thuc dan) OR (hoc dan)))) hanh dinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang x hoi. lieu va dau ((truc ban) OR (((thuc dan) OR (hoc dan)))) hanh dinh cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang x hoi. lieu va dau ((truc ban) or (((thuc dan) OR (hoc dan)))) hanh dinh cuu tre*".