Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuat nhung » thuat chung, thuat chuong, thuat dung
chiet tach » chieu sach
thuat hung » thuat dung, thuat ung, thuat xung
ho chiet » ho chieu, ho thiet, hoc thiet
cong san » cong tac
phan cau » phan dau, phan cac, 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: ho chiet tach - thanh trung ((thuat nhung) OR (thuat hung)) cong san ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh trung ((thuat nhung) OR (thuat hung)) cong san ((phan cau) OR (phan tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh trung ((thuat nhung) OR (thuat hung)) cong san ((phan cau) or (phan tu))*".