Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
trinh cua » tinh cua, trinh luat, trinh quan
manh toan » thanh toan, anh tuan, tinh toan
ucp manh » suc manh, duc manh, uu manh
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 ucp manh - hanh trinh cua ((nhung cong) OR (thong cong)) ((dan toan) or (manh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ucp manh - hanh trinh cua ((nhung cong) OR (thong cong)) ((dan toan) OR (manh toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ucp manh - hanh trinh cua ((nhung cong) OR (thong cong)) ((dan toan) or (manh toan)) ban".
• Adding a wildcard symbol may retrieve word variants: theo ucp manh - hanh trinh cua ((nhung cong) OR (thong cong)) ((dan toan) or (manh toan)) ban*.