Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
hieu quan » hieu qua, lieu quan, thien quan
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
hoi hieu » hoi phieu, hoi tieu, moi hieu
cong dan » cong san, cong tan, huong dan
toan tap » toan ban
toan cao » 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: hoi hieu quan - hanh trang cua nhung cong dan ((toan tap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu quan - hanh trang cua nhung cong dan ((toan tap) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoi hieu quan - hanh trang cua nhung cong dan ((toan tap) or (toan cao))*.