Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu quan » lieu quan, thien quan, lien quan
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
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: ho ((hieu quan) OR (hieu qua)) - hanh tranh cua nhung cong dan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu quan) OR (hieu qua)) - hanh tranh cua nhung cong dan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu quan) OR (hieu qua)) - hanh tranh cua nhung cong dan ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu quan) OR (hieu qua)) - hanh tranh cua nhung cong dan ((toan cau) or (toan tap))*.