Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
hoc thieu » toc thieu, hoc hien
trinh ung » trinh dung, trinh duong, trinh nhung
dung hong » duong hong, dung huong, dung khong
hong van » hoang van, thong van, phong van
van quan » van ban
quan cu » quan cua, quang cu, quan cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (hoc thieu)) sang - cong trinh ung dung hong van quan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) sang - cong trinh ung dung hong van quan cu*.