Perhaps you should try some spelling variations:
thep xanh » heo xanh, thep bang, thep hinh
xanh tham » sach tham, van tham, xanh lam
tham dinh » nam dinh, thai binh, than kinh
dinh hoc » sinh hoc, hinh hoc, tinh hoc
danh nam » dan nam, dinh nam, hanh nam
dang nam » dong nam, dan nam, dung nam
dinh cac » tinh cach, dinh chuc, dinh chau

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 ( hop ((danh nam) OR (dang nam)) dinh cac. ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thep xanh tham dinh hoc. ) or ( hop ((danh nam) OR (dang nam)) dinh cac. ))~".
• Adding a wildcard symbol may retrieve word variants: (( thep xanh tham dinh hoc. ) or ( hop ((danh nam) OR (dang nam)) dinh cac. ))*.