Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
trinh han » trinh quan
han nhung » hanh nhung, hon nhung, ban nhung
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
chu tach » chu tich, chu thich, chu thanh
dan toan » van toan, dan than, xuan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tach - hanh trinh han nhung cong ((dan toan) or (manh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tach - hanh trinh han nhung cong ((dan toan) OR (manh toan)) cao.
• Adding a wildcard symbol may retrieve word variants: theo chu tach - hanh trinh han nhung cong ((dan toan) or (manh toan)) cao*.