Perhaps you should try some spelling variations:
nhieu sang » chieu sang, nhieu tang, nhiet nang
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » hanh trang, anh tang, hanh mang
cong dan » cong san, cong tan, huong dan
dan hanh » dang hanh, dan khanh, dan thanh
hanh tap » han tap, hanh tai, hang tap
ha dong » hoat dong, van dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: he ((nhieu sang) OR (hieu lang)) - hanh tang ((huy dong) or (ha dong)) cong dan hanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: he ((nhieu sang) OR (hieu lang)) - hanh tang ((huy dong) OR (ha dong)) cong dan hanh tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "he ((nhieu sang) OR (hieu lang)) - hanh tang ((huy dong) or (ha dong)) cong dan hanh tap".
• Adding a wildcard symbol may retrieve word variants: he ((nhieu sang) OR (hieu lang)) - hanh tang ((huy dong) or (ha dong)) cong dan hanh tap*.