Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh cua » tinh cua, trinh luat, trinh quan
hang cong » dang cong, hang nong, bang cong
tong cong » cong cong, dung cong, dang cong
hoc hieu » hoc thieu, hoc hien, doc hieu
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

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