Perhaps you should try some spelling variations:
chiet tach » chieu sach
canh trinh » canh tranh, hanh trinh, canh tinh
van thong » van thuong, van phong, van thang
cong doan » cong dan, cong hoan, dong doanh
ho chiet » ho chieu, ho thiet, hoc thiet
va thong » va thuong, va phuong, he thong
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 tach - canh trinh ((van thong) OR (va thong)) cong doan ((phan cau) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - canh trinh ((van thong) OR (va thong)) cong doan ((phan cau) OR (phan lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - canh trinh ((van thong) OR (va thong)) cong doan ((phan cau) or (phan lap))".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh trinh ((van thong) OR (va thong)) cong doan ((phan cau) or (phan lap))*.