Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hoc thiet » hoc thieu, hoc thuyet, toc thieu
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
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: ((hoc thiet) or (hoc hien)) tach - canh tranh cua dung cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc hien)) tach - canh tranh cua dung cong thanh toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc hien)) tach - canh tranh cua dung cong thanh toan ban*.