Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
hanh hanh » hanh han, xanh hanh, nhanh thanh
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
toan cao » toan ban
toan tap » toan ban
hanh va » hang va, hanh vi

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 - hanh hanh va ((hang cong) or (bang cong)) thanh ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh hanh va ((hang cong) OR (bang cong)) thanh ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh hanh va ((hang cong) or (bang cong)) thanh ((toan cao) or (toan tap))*.