Perhaps you should try some spelling variations:
bien tinh » bi tinh, yen tinh, diep tinh
truong va » truong dai, truong cao, truong dao
doi bien » doi dien, voi bien, doi hien
thong va » trong va, thong cua, thong qua
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi bien tinh - thanh ((thong va) or (truong va)) trong cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi bien tinh - thanh ((thong va) OR (truong va)) trong cong van tuan ban*.