Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
dang cong » dung cong
ho thiet » hoa thiet, so thiet, hoc thieu
tung cao » nung cao, truong cao, trung cap
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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) or (hoc thiet)) tach - thanh tung cao dang cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho thiet) OR (hoc thiet)) tach - thanh tung cao dang cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((ho thiet) or (hoc thiet)) tach - thanh tung cao dang cong dan toan ban*.