Perhaps you should try some spelling variations:
tinh thuong » trinh thuong, tinh huong, dinh thuong
dung quang » dang quang, dung quan, luong quang
quang ban » quang binh, quang tuan, quang tran
hieu soat » hieu suat, hieu hoat, hieu luat
kiem soat » kiem toan
ban hieu » van hieu, gian hieu, phan hieu
luan va » luan van
luat va » xuat va, luat ve, suat va

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 quang ban hieu soat ) or ( tinh thuong ((luan va) or (luat va)) kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung quang ban hieu soat ) OR ( tinh thuong ((luan va) OR (luat va)) kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung quang ban hieu soat ) or ( tinh thuong ((luan va) or (luat va)) kiem soat ))*.