Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
chua nang » chuc nang, chua xang, kha nang
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
hach toan » thanh toan, manh toan
chu xanh » chu manh, chieu xanh, chua xang
tam toan » tap toan, tam than, pham toan

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: theo ((chu xanh) OR (chua nang)) - hanh trinh quan dung cong ((tam toan) OR (hach toan)) cau~.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chua nang)) - hanh trinh quan dung cong ((tam toan) or (hach toan)) cau*.