Perhaps you should try some spelling variations:
truc ban » thuc ban, truc dan, truc van
thuc dan » thuc hanh, hoc dan, thuc vat
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hanh di » hanh vi, hanh de, hang di
cau tre » cau tren, cau treo, cau tra
va dau » va dao
di cau » da cau, diem cau
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)) hanh di cau 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)) hanh di cau tre*.