Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
lanh tranh » canh tranh, lan tranh, hanh trinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, cong dong
toan cao » toan ban, toan tap

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 - ((lanh tranh) or (hanh trang)) cua dung ((cong dan) OR (huong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((lanh tranh) OR (hanh trang)) cua dung ((cong dan) OR (huong dan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - ((lanh tranh) or (hanh trang)) cua dung ((cong dan) OR (huong dan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((lanh tranh) or (hanh trang)) cua dung ((cong dan) OR (huong dan)) toan cao*.