Perhaps you should try some spelling variations:
nhanh dung » nhanh dong, hanh dung, nhanh hung
thai nhung » thi nhung, tham nhung, thai vung
nhung cong » dung cong, thong cong, hang cong
dung thai » duong thai, dung tai, dung hai
cong manh » cong danh, duong manh, cong thanh
cau sach » cao sach, hau sach, khau sach
rau sach » hau sach, khau sach, nam sach
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((cau sach) or (rau sach)) - nhanh dung thai nhung cong manh ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((cau sach) OR (rau sach)) - nhanh dung thai nhung cong manh ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((cau sach) or (rau sach)) - nhanh dung thai nhung cong manh ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo ((cau sach) or (rau sach)) - nhanh dung thai nhung cong manh ((toan cao) OR (toan tap))*.