Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhung cong » thong cong, hang cong, nhung don
tranh cua » doanh cua, manh cua
dung cong » dung trong
ho chiet » ho chieu, ho thiet, hoc thiet
gian tay » giang day, gian dan, gian cac
gian cua » gian xu, ban cua

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 - canh tranh cua ((nhung cong) or (dung cong)) tac ((gian tay) or (gian cua))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - canh tranh cua ((nhung cong) OR (dung cong)) tac ((gian tay) OR (gian cua)).
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh tranh cua ((nhung cong) or (dung cong)) tac ((gian tay) or (gian cua))*.