Perhaps you should try some spelling variations:
manh thong » anh thong, manh tuong, mang thong
chieu sach » chinh sach, chiet tach, chieu sang
hieu lang » chieu sang, hieu quang, nhieu tang
quan lang » quan hoang, gian lang, quan luan
lang cong » dang cong, bang cong, hang cong
cong thuc » cong tac
thuc pha » thuc pham, thuc phan, thuc ha
pha tap » pham tai

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 sach) or (hieu lang)) - manh thong quan lang cong thuc pha tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu sach) OR (hieu lang)) - manh thong quan lang cong thuc pha tap*.