Perhaps you should try some spelling variations:
quang nhung » quang hung, quan nhung, quang phuong
chieu sang » chieu sach, chieu xanh, nhieu tang
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, hieu van
hanh tran » hanh trang, thanh tran, hanh tram
manh toan » thanh toan, anh tuan, tinh toan
van thanh » ban thanh, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) OR (hieu lang)) - hanh tran quang nhung cong ((manh toan) or (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - hanh tran quang nhung cong ((manh toan) OR (van thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - hanh tran quang nhung cong ((manh toan) or (van thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - hanh tran quang nhung cong ((manh toan) or (van thanh)) cau*.