Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
canh manh » lanh manh, canh tranh, cach mang
tong cong » trong cong, cong cong, dang cong
dung cong » dung trong
manh cua » doanh cua, ban cua
van phan » van phong, van thanh, luan phan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - canh manh cua ((tong cong) or (dung cong)) van phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - canh manh cua ((tong cong) OR (dung cong)) van phan cac.
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - canh manh cua ((tong cong) or (dung cong)) van phan cac*.