Perhaps you should try some spelling variations:
cua nhung » va nhung
cong lang » cong vang, cong luong, cong quang
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
canh ban » can ban, canh dan, canh van
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - canh ban cua nhung ((((cong tan) or (cong san))) or (cong lang)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - canh ban cua nhung ((((cong tan) OR (cong san))) OR (cong lang)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - canh ban cua nhung ((((cong tan) or (cong san))) or (cong lang)) toan cau*.