Perhaps you should try some spelling variations:
lanh tranh » canh tranh, lan tranh, hanh trinh
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
lanh manh » lan anh, van manh, anh anh
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu sach)) - ((lanh manh) OR (lanh tranh)) qua dung cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - ((lanh manh) OR (lanh tranh)) qua dung cong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sach)) - ((lanh manh) OR (lanh tranh)) qua dung cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - ((lanh manh) OR (lanh tranh)) qua dung cong dan than cau*.