Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
dung cong » dung trong
ho chiet » ho chieu, hoa thiet, hoc nhiet
ho thiet » hoa thiet, so thiet, hoc thieu
tung cao » nung cao, truong cao, trung cap
cao dung » cao dang, cao dong, cao ung
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
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: ((ho chiet) or (((ho thiet) or (hoc thiet)))) tach - thanh tung cao dung cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (((ho thiet) OR (hoc thiet)))) tach - thanh tung cao dung cong tac than cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (((ho thiet) or (hoc thiet)))) tach - thanh tung cao dung cong tac than cau*.