Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
quan thong » quang thong, quan trong, xuan thong
thong cong » trong cong, tong cong, thong thong
dang quan » dang quang, nang quan, dung quan
anh dang » anh dong, anh dung, anh bang
dan chan » 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: doc ((chieu xanh) or (chieu sang)) - anh dang quan thong cong ((dan chan) OR (dan gian)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu xanh) OR (chieu sang)) - anh dang quan thong cong ((dan chan) OR (dan gian)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu xanh) or (chieu sang)) - anh dang quan thong cong ((dan chan) OR (dan gian)) cau*".