Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach
thuat tach » thuat sach, thuat mach, thuat tac
dung cong » dung trong
dung cua » dung luan, dung cho
cong san » cong tac
san khac » san khau, sai khac, can khach
khac cap » khan cap, khac hau, khac lau

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 (thuat tach)) - thanh ((dung cua) or (trung tam)) dung cong san khac cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thiet tach) OR (thuat tach)) - thanh ((dung cua) OR (trung tam)) dung cong san khac cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((thiet tach) OR (thuat tach)) - thanh ((dung cua) or (trung tam)) dung cong san khac cap*".