Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va duong » van duong, va tuong, va huong
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban
hoc ban » hoc bang, hoc dan, hoc bai
va dung » van dung, vat dung, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ban thanh - canh tranh ((va dung) OR (va duong)) cong van tuan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ban thanh - canh tranh ((va dung) OR (va duong)) cong van tuan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ban thanh - canh tranh ((va dung) OR (va duong)) cong van tuan ban*.