Perhaps you should try some spelling variations:
tinh thuong » trinh thuong, tinh huong, dinh thuong
thuong luan » thuong lan, thong luan, truong luan
quang van » quang ban, quang uan, quang va
hieu soat » hieu suat, hieu hoat, hieu luat
kiem soat » kiem toan
quan van » luan van, quan va, quan luan
luan va » luan van, luat va
va kiem » van kien

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 van) OR (quan van)) hieu soat ) or ( tinh thuong luan va kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung ((quang van) OR (quan van)) hieu soat ) OR ( tinh thuong luan va kiem soat )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin dung ((quang van) OR (quan van)) hieu soat ) or ( tinh thuong luan va kiem soat ))".
• Adding a wildcard symbol may retrieve word variants: (( tin dung ((quang van) OR (quan van)) hieu soat ) or ( tinh thuong luan va kiem soat ))*.