Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
theo hop » theo phap, thao hoc, theo ucp
hop manh » hop danh, ho manh, hop mang
dan toan » van toan, dan than, manh 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 hop manh - hanh trinh cua nhung cong ((dan toan) or (anh tuan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hop manh - hanh trinh cua nhung cong ((dan toan) OR (anh tuan)) ban.
• Adding a wildcard symbol may retrieve word variants: theo hop manh - hanh trinh cua nhung cong ((dan toan) or (anh tuan)) ban*.