Perhaps you should try some spelling variations:
hien manh » hien hanh, tien manh, hieu manh
hanh manh » hanh mang, lanh manh, hoang manh
tong cong » trong cong, cong cong, dung cong
manh toan » thanh toan, anh tuan, tinh toan
manh cua » doanh cua, ban cua
cua tong » cua cong, cua dong, cua nong
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien manh - hanh manh cua tong cong ((dan than) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - hanh manh cua tong cong ((dan than) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - hanh manh cua tong cong ((dan than) or (manh toan)) cau*.