Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
thanh tung » thanh cong
hung uong » hung vuong, hung cuong, hung luong
thanh lap » thanh san, phan lap, thanh hai
so thiet » soc thiet, hoc thiet, hoa thiet
tung tam » trung tam, vung tam, dung tam
tam hung » tam huong, cam hung, tai hung
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: so thiet tach - thanh tung tam hung uong bi ((than cau) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so thiet tach - thanh tung tam hung uong bi ((than cau) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: so thiet tach - thanh tung tam hung uong bi ((than cau) or (thanh lap))*.