Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trong quan » thong quan, tong quan, thong quang
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
cong ban » cong bang, cong san, cong tan
phap cac » phap cach, phan cac, phap ca
pha cac » phan cac, pha cau, phap cach

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 xanh) or (chieu sang)) - thanh trong quan dung cong ban ((phap cac) OR (pha cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - thanh trong quan dung cong ban ((phap cac) OR (pha cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sang)) - thanh trong quan dung cong ban ((phap cac) OR (pha cac))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - thanh trong quan dung cong ban ((phap cac) OR (pha cac))*.