Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, hieu van
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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: theo ((chinh sach) or (((nhieu tang) or (hieu lang)))) - hanh trinh cua nhung cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chinh sach) OR (((nhieu tang) OR (hieu lang)))) - hanh trinh cua nhung cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chinh sach) or (((nhieu tang) or (hieu lang)))) - hanh trinh cua nhung cong van toan cao*.