Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
thu sach » tu sach, thuat sach, thuoc sach
cau sach » cao sach, hau sach, rau sach
cong san » cong tac
toan cao » toan tap
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: chao ((thu sach) or (cau sach)) - hanh tranh cua nhung cong san ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((thu sach) OR (cau sach)) - hanh tranh cua nhung cong san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((thu sach) or (cau sach)) - hanh tranh cua nhung cong san ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: chao ((thu sach) or (cau sach)) - hanh tranh cua nhung cong san ((toan cao) OR (toan ban))*.