Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
manh truong » manh trung, manh tuong, anh truong
chiet tach » chieu sach
thanh hang » thanh hoang, thanh thang, tranh hang
hieu quan » hieu qua, lieu quan, thien quan
hang nong » thang long, han tong
nong dan » cong dan, nong san, nguong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chiet tach) or (hieu quan)) - manh truong thanh hang nong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (hieu quan)) - manh truong thanh hang nong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (hieu quan)) - manh truong thanh hang nong dan toan cao*.