Perhaps you should try some spelling variations:
luong tiet » luong thiet, luong tien, luong thien
luong viet » thuong viet, truong viet, nguong viet
nhung lan » nhung lang, nhung van, phuong lan
quang yen » quan den
ky nhung » my nhung, ty nhung, kim nhung
van chat » cao chat
lan van » luan van, lang van, tan van
nhung » nhuong, nchung, ndung
hung » huong, chung, dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: cong trinh ky nhung lan van chat ((luong tiet) OR (luong viet)) ke ((quang yen) or (hung yen))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cong trinh ky nhung lan van chat ((luong tiet) OR (luong viet)) ke ((quang yen) OR (hung yen)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "cong trinh ky nhung lan van chat ((luong tiet) OR (luong viet)) ke ((quang yen) or (hung yen))".
• Adding a wildcard symbol may retrieve word variants: cong trinh ky nhung lan van chat ((luong tiet) OR (luong viet)) ke ((quang yen) or (hung yen))*.