Perhaps you should try some spelling variations:
luong thit » luong thiet, luong thi, huong thit
trinh xay » trinh ky
quang yen » hung yen
dung lan » dung luan, dung land, dung lam
van chat » cao chat
quan den » quan doan, quan he, quan doi
lan van » luan van, lang van, tan van
thit ke » thiet ke, thie ke, thien ke

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 xay dung lan van chat luong thit ke ((quang yen) OR (quan den))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cong trinh xay dung lan van chat luong thit ke ((quang yen) OR (quan den))".
• Adding a wildcard symbol may retrieve word variants: cong trinh xay dung lan van chat luong thit ke ((quang yen) OR (quan den))*.