Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
quang doan » quan doan, quang toan, quang hoang
quang hoan » quang hoang, quang toan, quang thoai
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong cong » cong dong, trong cong, dung cong
hoc hieu » hoc thieu, hoc hien, doc hieu

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 - ((minh hoang) or (hanh trinh)) cua cong cong ((quang doan) OR (quang hoan)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((minh hoang) OR (hanh trinh)) cua cong cong ((quang doan) OR (quang hoan)) cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - ((minh hoang) or (hanh trinh)) cua cong cong ((quang doan) OR (quang hoan)) cap".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((minh hoang) or (hanh trinh)) cua cong cong ((quang doan) OR (quang hoan)) cap*.