Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
khoan cam » khoan va, phan cam, thuan cam
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
khoa cam » khoa kham, khoa ma, hoa cac
va tinh » may tinh
ho va » ho van, nho va, tho va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho va tinh - canh tranh cua hang cong dan ((khoan cam) or (khoa cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho va tinh - canh tranh cua hang cong dan ((khoan cam) OR (khoa cam)).
• Adding a wildcard symbol may retrieve word variants: ho va tinh - canh tranh cua hang cong dan ((khoan cam) or (khoa cam))*.