Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
doc hieu » toc thieu, hoc hien
cua dang » cua ban
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: ((doc hieu) or (hoc thieu)) sang - hanh trinh ((cua dang) or (cua cong)) cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) sang - hanh trinh ((cua dang) OR (cua cong)) cong van tuan ban.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) sang - hanh trinh ((cua dang) or (cua cong)) cong van tuan ban*.