Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
tinh ban » tinh bang, trinh ban, tinh bac
cong tam » cong tac, cong tan, cong nam
toan cau » toan ban, toan tap, toan tai
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 ((nhieu tang) or (chieu sach)) - tinh ban cua thong cong tam ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((nhieu tang) OR (chieu sach)) - tinh ban cua thong cong tam ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo ((nhieu tang) or (chieu sach)) - tinh ban cua thong cong tam ((toan cau) or (toan cao))*.