Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
phong cong » phong chong, thong cong, chong cong
trinh van » trinh han, trinh quan, trinh toan
van phong » van dong, hai phong
cong doan » cong dan, cong hoan, dong doanh
ho chiet » ho chieu, hoc thiet, hoa thiet
ho thiet » hoc thiet, hoa thiet, so thiet
phan cau » phan dau, phan cac, phan tu
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chiet) OR (ho thiet)) tach - canh trinh van phong cong doan ((phan cau) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (ho thiet)) tach - canh trinh van phong cong doan ((phan cau) OR (phan lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) OR (ho thiet)) tach - canh trinh van phong cong doan ((phan cau) or (phan lap))".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) OR (ho thiet)) tach - canh trinh van phong cong doan ((phan cau) or (phan lap))*.