Perhaps you should try some spelling variations:
luong xuan » luong quan, luong quang, luong cua
dung luong » dung thuong, dung phuong, dung truong
hieu soat » hieu suat, hieu hoat, hieu luat
xuan kieu » xuan kien, xuan kinh, luan tieu
kieu soan » kieu doan, kiem toan, kiem soat
quan van » luan van, quan va, quan doan
tin » tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung ((quan van) OR (quan luan)) hieu soat ) or ( trinh dung luong xuan kieu soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung ((quan van) OR (quan luan)) hieu soat ) OR ( trinh dung luong xuan kieu soan )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin dung ((quan van) OR (quan luan)) hieu soat ) or ( trinh dung luong xuan kieu soan ))".
• Adding a wildcard symbol may retrieve word variants: (( tin dung ((quan van) OR (quan luan)) hieu soat ) or ( trinh dung luong xuan kieu soan ))*.