Perhaps you should try some spelling variations:
trinh doan » trinh toan, thinh doan, trinh dan
doan quang » tran quang, van quang, dang quang
kiem soat » kiem toan
dinh dung » dinh duong, dinh hung, tinh dung
quang ma » xquang ma, quang va, quang manh
dung qua » duong qua, dung quan, dung cua
van kiem » va kiem, van kien, van hieu
kiem sat » giam sat, kiem va, diem sai
ma kiem » may kiem, va kiem, ma kem
qua van » quan van, qua ban, qua san

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( trinh doan quang ma kiem soat ) or ( dinh dung qua van kiem sat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh doan quang ma kiem soat ) OR ( dinh dung qua van kiem sat ))*.