Perhaps you should try some spelling variations:
tinh thuong » trinh thuong, tinh huong, dinh thuong
dung quang » dang quang, dung quan, luong quang
quang van » quang ban, quan van, quang uan
kien soat » bien soan, kien hoa, dien hoat
kiem soat » kiem toan
van kien » van tien, van hien, van chien
quan va » quan vi, quan ha, quan ve
luan va » luan van, luat 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 van kien soat ) or ( tinh thuong ((quan va) or (luan va)) kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung quang van kien soat ) OR ( tinh thuong ((quan va) OR (luan va)) kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung quang van kien soat ) or ( tinh thuong ((quan va) or (luan va)) kiem soat ))*.