Perhaps you should try some spelling variations:
thiet tach » thuat tach
thien hach » thien thanh, hien hanh
chiet tach » chieu sach
thong cong » trong cong, tong cong, thong thong
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

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