Perhaps you should try some spelling variations:
thep xanh » heo xanh, thep bang, thep hinh
xanh tham » sach tham, van tham, xanh lam
dinh hoc » sinh hoc, hinh hoc, dich hoc
tinh hoc » sinh hoc, tin hoc, hinh hoc
dinh cac » tinh cach, dinh chuc, dinh chau
hop dan » hop danh, hoa dan, hoc dan
dan nam » van nam, dong nam, dinh nam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( thep xanh tham ((dinh hoc) OR (tinh hoc)). ) OR ( hop dan nam dinh cac. ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thep xanh tham ((dinh hoc) OR (tinh hoc)). ) or ( hop dan nam dinh cac. ))~".
• Adding a wildcard symbol may retrieve word variants: (( thep xanh tham ((dinh hoc) OR (tinh hoc)). ) or ( hop dan nam dinh cac. ))*.