Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
trang cua » tranh cua, tang cua, trung cua
cong cong » cong dong, trong cong, dung cong
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
toan tap » toan 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 ((nhieu tang) or (chieu sach)) - hanh trang cua cong cong tac ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((nhieu tang) OR (chieu sach)) - hanh trang cua cong cong tac ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((nhieu tang) or (chieu sach)) - hanh trang cua cong cong tac ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: chao ((nhieu tang) or (chieu sach)) - hanh trang cua cong cong tac ((toan cau) OR (toan tap))*.