Perhaps you should try some spelling variations:
nhung luong » hung luong, nhung huong, nhung tuong
manh truong » manh trung, manh tuong, anh truong
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
truong va » truong dai, truong cao, truong dao
luong va » dung va
toan ban » van ban
va toan » van toan, bai toan, tap toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (chieu xanh)) - manh truong va nhung luong va toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu xanh)) - manh truong va nhung luong va toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chieu xanh)) - manh truong va nhung luong va toan ban*.