Perhaps you should try some spelling variations:
nguoi vien » nguoi viet, nguoi tien, nguoi chien
giao dinh » gia dinh, giao dich, giam dinh
dinh thi » dinh tri
ca nguoi » cua nguoi, va nguoi, cho nguoi
vien dai » hien dai
thi mua » thi dua, thi cua, thi mui
mua dan » cua dan, mua ban, cua dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: giao dinh thi mua dan ca nguoi vien dai ((hoc tieng) or (hoc hien)) han~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao dinh thi mua dan ca nguoi vien dai ((hoc tieng) OR (hoc hien)) han.
• Adding a wildcard symbol may retrieve word variants: giao dinh thi mua dan ca nguoi vien dai ((hoc tieng) or (hoc hien)) han*.