Perhaps you should try some spelling variations:
duong trong » dung trong
tranh quan » tranh quang, trinh quan, tranh luan
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
dung cong » dung trong
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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) or (chieu sang)) - canh tranh quan ((duong trong) or (dung cong)) dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - canh tranh quan ((duong trong) OR (dung cong)) dan than cap.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - canh tranh quan ((duong trong) or (dung cong)) dan than cap*.