Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
duong cong » dung cong, luong cong, duong trong
doi chieu » doc hieu, doi chi, ho chieu
trang va » hang va
tran van » luan van
tan chan » ban chan, can chan, tam chan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - canh ((trang va) or (tran van)) duong cong ((tan chan) OR (dan chan)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh ((trang va) OR (tran van)) duong cong ((tan chan) OR (dan chan)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh ((trang va) or (tran van)) duong cong ((tan chan) OR (dan chan)) tu".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh ((trang va) or (tran van)) duong cong ((tan chan) OR (dan chan)) tu*.