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
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
cong tan » cong tac, cong san, cong thanh
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chu)) sach - hanh tranh cua nhung cong tan ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) sach - hanh tranh cua nhung cong tan ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chu)) sach - hanh tranh cua nhung cong tan ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) sach - hanh tranh cua nhung cong tan ((than cau) OR (toan cau))*.