Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trong quan » thong quan, tong quan, thong quang
anh trong » anh thuong, dinh trong, lang trong
quan hang » quan hoang, quan lang, quan hanh
hang cong » dang cong, hang nong, bang cong
cong thuc » cong tac
thuc phan » thuc pham, thu phan, thuc chan
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((chieu xanh) or (chieu sang)) - anh trong quan hang cong thuc phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu xanh) OR (chieu sang)) - anh trong quan hang cong thuc phan tap*.