Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
dang cuon » dang cuong, dong cuon, tang cuong
cuon danh » cuong danh, cuoi dan, cum danh
phan ung » phan xuong, phan cong
ung dang » dung dang, ung dung, duong dang
danh van » doanh van, dang van, dinh van
van chat » cao chat
van van » van ban, tan van, san van

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 (toc thieu)) tinh - phan ung dang cuon danh van van chat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (toc thieu)) tinh - phan ung dang cuon danh van van chat".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (toc thieu)) tinh - phan ung dang cuon danh van van chat*.