Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
hang cong » dang cong, bang cong, thanh cong
hang nong » thang long, han tong
phan cam » phan cac, phan cau, khoan cam
ho hieu » ho chieu, hoi hieu, nho hieu
khan ap » khan cap, han ap, khan dam

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 lang - hanh tranh cua ((hang cong) or (hang nong)) dan ((khan ap) or (phan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh tranh cua ((hang cong) OR (hang nong)) dan ((khan ap) OR (phan cam)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh tranh cua ((hang cong) or (hang nong)) dan ((khan ap) or (phan cam))*.