Perhaps you should try some spelling variations:
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trang » thanh trung, canh tranh, hanh trinh
hoc tapg » hoc tang, hoc tai, hoc lap
cong san » cong tac
san than » sang than, san thanh, ban 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 ((nhieu tang) OR (chieu sang)) - hanh trang ((hoc tapg) or (hoc tap)) cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((nhieu tang) OR (chieu sang)) - hanh trang ((hoc tapg) OR (hoc tap)) cong san than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((nhieu tang) OR (chieu sang)) - hanh trang ((hoc tapg) or (hoc tap)) cong san than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((nhieu tang) OR (chieu sang)) - hanh trang ((hoc tapg) or (hoc tap)) cong san than cau*.