Perhaps you should try some spelling variations:
huong thit » huong thi, luong thit, thuong thiet
trinh xay » trinh ky
luong thi » luong tai
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
ke quan » ve quan, te quan, he quan

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