Perhaps you should try some spelling variations:
luong tiet » luong thiet, luong viet, luong tien
trinh xay » trinh ky
quan doan » quan hoang, chuan doan, chan doan
dung lam » dung luan, dung tai, dung dat
van chat » cao chat
quan den » quan he, quan doi
lam van » lam san, nam van, dam van
tiet ke » thiet ke, tiet kiem

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 lam van chat luong tiet ke ((quan den) or (quan doan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cong trinh xay dung lam van chat luong tiet ke ((quan den) OR (quan doan)).
• Adding a wildcard symbol may retrieve word variants: cong trinh xay dung lam van chat luong tiet ke ((quan den) or (quan doan))*.