Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
nhieu tang » chieu sang, nhiet nang
cua truong » cua trung, xuan truong, cac truong
cong thanh » dong thanh, cong tan, truong thanh
hieu lang » chieu sang, hieu quang, hieu van
trang cua » tranh cua, tang cua, trung cua
toan cau » 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: ho ((nhieu tang) or (hieu lang)) - hanh trang cua truong ((cong thanh) OR (cong trinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((nhieu tang) OR (hieu lang)) - hanh trang cua truong ((cong thanh) OR (cong trinh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((nhieu tang) or (hieu lang)) - hanh trang cua truong ((cong thanh) OR (cong trinh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((nhieu tang) or (hieu lang)) - hanh trang cua truong ((cong thanh) OR (cong trinh)) toan cau*.