Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
hoc thieu » toc thieu, hoc hien
cua trong » cua truong, cua trung, qua trong
hoc dieu » hoc hien
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (hoc thieu)) sang - ((canh tranh) or (hanh trinh)) cua trong cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc thieu)) sang - ((canh tranh) OR (hanh trinh)) cua trong cong van toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc thieu)) sang - ((canh tranh) or (hanh trinh)) cua trong cong van toan ban*.