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 dong » hang nong, hanh dong, lang dong
hang cong » dang cong, hang nong, bang cong
doc hieu » toc thieu, hoc thieu, hoc hien
san cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu manh - hanh trinh cua ((hang dong) OR (hang cong)) thanh san cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu manh - hanh trinh cua ((hang dong) OR (hang cong)) thanh san cau".
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - hanh trinh cua ((hang dong) OR (hang cong)) thanh san cau*.