Perhaps you should try some spelling variations:
luong quang » luong quan, dung quang
luong luan » luong quan, luong xuan, cuong luan
dinh luong » dinh duong, dinh huong, dinh cuong
tin luong » tien luong, tin huong, tin tuong
hieu soat » hieu suat, hieu hoat, hieu luat
van hieu » cao hieu
quang va » quang van, quan va, quang ma
lien son » bien soan, lieu lon, lieu so
bien so » bien doi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin luong luan van hieu soat ) or ( dinh luong quang va ((lien son) OR (bien so)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin luong luan van hieu soat ) OR ( dinh luong quang va ((lien son) OR (bien so)) ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin luong luan van hieu soat ) or ( dinh luong quang va ((lien son) OR (bien so)) ))*".