Perhaps you should try some spelling variations:
dung phong » dung phuong, duong phong, rung phong
doi chieu » doc hieu, doi chi, mot chieu
hoc thieu » toc thieu, hoc hien
trinh ung » trinh dung, trinh duong, trinh nhung
phong van » phung van, thong van, phong va
van tuan » van quan, van ban, anh tuan
tuan cu » tuan tu, quan cua, tuan thu

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 phong van tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) sang - cong trinh ung dung phong van tuan cu*.