Perhaps you should try some spelling variations:
trinh luong » trinh duong, trinh huong, trinh xuong
nang quang » nang quan, dang quang, hang quang
luong quan » thong quan, duong qua
quang van » quang ban, quan van, quang uan
kiem soat » kiem toan
van bien » van tien, van hien, vat bien
ki nang » ky nang
bien so » bien doi
quan va » quan vi, quan ha, luan va
va kiem » van kien

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( ki nang quang van bien so ) OR ( trinh luong quan va kiem soat ))~.
• Adding a wildcard symbol may retrieve word variants: (( ki nang quang van bien so ) or ( trinh luong quan va kiem soat ))*.