Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thu huong » thu cong
theo tin » thao tin, theo tieu, theo tcvn
thu hang » thi hang, thuc hanh, thu trang
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 tin dung - hanh trinh ((thu hang) or (thu huong)) cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tin dung - hanh trinh ((thu hang) OR (thu huong)) cong van tuan ban.
• Adding a wildcard symbol may retrieve word variants: theo tin dung - hanh trinh ((thu hang) or (thu huong)) cong van tuan ban*.