Perhaps you should try some spelling variations:
thep thiet » thep viet, thuyet thiet
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan tap » toan 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 tieu) or (thep thiet)) tinh - hanh tranh cua nhung cong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (thep thiet)) tinh - hanh tranh cua nhung cong van toan tap*.