Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
dong huong » dong thuong, dong duong, cong huong
chuc hach » chuc hanh, thuc hanh, chuc danh
cao sach » co sach, ao sach, cau sach
tuong su » thuong su, thong su, tuong tu
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau
su dong » su dung, tu dong, su dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chuc hach) or (cao sach)) - thanh tuong su dong huong dan ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc hach) OR (cao sach)) - thanh tuong su dong huong dan ((phan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: theo ((chuc hach) or (cao sach)) - thanh tuong su dong huong dan ((phan cau) or (phan dau))*.