Perhaps you should try some spelling variations:
trong quan » thong quan, tong quan, thong quang
thong cong » trong cong, tong cong, thong thong
tieu sach » chieu sach, dien sach, te sach
thong qua » thong quan, thong cua, thong tu
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: theo tieu sach - hanh ((thong qua) or (trong quan)) thong cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh ((thong qua) OR (trong quan)) thong cong van tuan ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh ((thong qua) or (trong quan)) thong cong van tuan ban*.