Perhaps you should try some spelling variations:
nhung luong » hung luong, nhung huong, nhung tuong
nhieu tang » nhiet nang
chieu sang » chieu sach, chieu xanh
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu lang » hieu quang, hieu van, biet lang
tranh va » tranh van, trang va, trinh va
luong va » dung va
va tan » van tan, va toan, va than
tan ca » tan cua, tang ca, dan ca

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((((hieu lang) OR (nhieu tang))) or (chieu sang)) - hanh tranh va nhung luong va tan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((hieu lang) OR (nhieu tang))) OR (chieu sang)) - hanh tranh va nhung luong va tan ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((((hieu lang) OR (nhieu tang))) or (chieu sang)) - hanh tranh va nhung luong va tan ca".
• Adding a wildcard symbol may retrieve word variants: doi ((((hieu lang) OR (nhieu tang))) or (chieu sang)) - hanh tranh va nhung luong va tan ca*.