Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
nang cong » nang song, dang cong, bang cong
cong danh » cuong danh, cong dan, cong thanh
cong khi » cong thai, khong khi, co khi
khi nang » khoi nang, ki nang, thi nang
toan cau » toan cao, toan tap, toan tai
toan ban » van 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 tieu sach - thanh cong khi nang cong danh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - thanh cong khi nang cong danh ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh cong khi nang cong danh ((toan cau) or (toan ban))*.