Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
tranh quan » tranh quang, trinh quan, tranh luan
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
cong san » cong tac
tan ban » toan ban, tang ban, can ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - canh tranh quan nhung cong san ((tan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - canh tranh quan nhung cong san ((tan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - canh tranh quan nhung cong san ((tan ban) or (van ban))*.