Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
chap xang » phap nang, chua xang, phap sang
phap tang » phap nang, phap tieng
cong bang » cuong bang, dong bang, hong bang
bang hang » ban hang, hang hang, nang hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) OR (hieu lang)) - canh tranh ((chap xang) or (phap tang)) cong bang hang va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (hieu lang)) - canh tranh ((chap xang) OR (phap tang)) cong bang hang va.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (hieu lang)) - canh tranh ((chap xang) or (phap tang)) cong bang hang va".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (hieu lang)) - canh tranh ((chap xang) or (phap tang)) cong bang hang va*.