Perhaps you should try some spelling variations:
nhanh thanh » nhanh tinh
thiet tach » chiet tach, thien hach, thuat tach
phan thanh » pham thanh, ban thanh, van thanh
thong cong » trong cong, tong cong, thong thong
ho thiet » hoc thiet, hoa thiet, so thiet
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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 - ((nhanh thanh) OR (phan thanh)) va thong cong tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho thiet tach - ((nhanh thanh) OR (phan thanh)) va thong cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - ((nhanh thanh) OR (phan thanh)) va thong cong tan toan cau*.