Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, biet lang
hanh hang » thanh hang, hang hang, hanh han
dang cong » dung cong
hieu van » hieu va, thien van, lieu va
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
va dang » van dang, va nang, va lang

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 lang) OR (hieu van))) or (nhieu tang)) - hanh hang va dang cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu lang) OR (hieu van))) OR (nhieu tang)) - hanh hang va dang cong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((hieu lang) OR (hieu van))) or (nhieu tang)) - hanh hang va dang cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu lang) OR (hieu van))) or (nhieu tang)) - hanh hang va dang cong dan than cau*.