Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
lang cong » dang cong, bang cong, hang cong
trang va » tran van
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap
ho hieu » ho chieu, hoi hieu, nho hieu

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 - hanh ((trang va) OR (hang va)) lang cong san than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - hanh ((trang va) OR (hang va)) lang cong san than cau".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh ((trang va) OR (hang va)) lang cong san than cau*.