Perhaps you should try some spelling variations:
trinh quang » tinh quang, trinh quan, trinh dung
tranh quang » tran quang, tinh quang, trinh quan
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, 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 - hanh ((trinh quang) or (tranh quang)) nhung cong ((dan than) OR (van than)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh ((trinh quang) OR (tranh quang)) nhung cong ((dan than) OR (van than)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh ((trinh quang) or (tranh quang)) nhung cong ((dan than) OR (van than)) tap".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh ((trinh quang) or (tranh quang)) nhung cong ((dan than) OR (van than)) tap*.