Perhaps you should try some spelling variations:
truong chien » trong chien, truong thien, truong nghien
luong thit » luong thiet, luong thi, huong thit
trinh xay » trinh ky
dung quan » dung quang, dung luan, luong quan
quang yen » hung yen
quan van » luan van, quan va, quan luan
van chat » cao chat
quan den » quan doan, quan he, quan doi

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 quan van chat ((luong thit) or (truong chien)) ke ((quang yen) OR (quan den))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cong trinh xay dung quan van chat ((luong thit) OR (truong chien)) ke ((quang yen) OR (quan den)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "cong trinh xay dung quan van chat ((luong thit) or (truong chien)) ke ((quang yen) OR (quan den))".
• Adding a wildcard symbol may retrieve word variants: cong trinh xay dung quan van chat ((luong thit) or (truong chien)) ke ((quang yen) OR (quan den))*.