Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
hanh luan » khanh luan, hang luan, hanh luat
van dung » van dong, xay dung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (doi chieu)) lang - hanh luan ((van dung) or (tin dung)) cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chieu)) lang - hanh luan ((van dung) OR (tin dung)) cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chieu)) lang - hanh luan ((van dung) or (tin dung)) cong van toan cao*.