Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
truong dao » truong dai, truong cao, truong bo
cau sach » cao sach, hau sach, rau sach
tran van » luan van
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu
sua cau » cua cau, lua cau, su cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: sua cau sach - thanh ((truong dao) or (tran van)) nhung huong dan ((than cau) OR (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sua cau sach - thanh ((truong dao) OR (tran van)) nhung huong dan ((than cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "sua cau sach - thanh ((truong dao) or (tran van)) nhung huong dan ((than cau) OR (phan cau))".
• Adding a wildcard symbol may retrieve word variants: sua cau sach - thanh ((truong dao) or (tran van)) nhung huong dan ((than cau) OR (phan cau))*.