Perhaps you should try some spelling variations:
dang cong » dung cong
cong danh » cuong danh, cong dan, cong thanh
doc hieu » hoc thieu, hoc hien
danh van » doanh van, dang van, dinh van
van chat » cao chat
phan da » phan dau, phan dai, phan day
da dang » da nang, cao dang, dia danh
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: ((doc hieu) OR (toc thieu)) tinh - phan da dang cong danh van van chat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) tinh - phan da dang cong danh van van chat".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (toc thieu)) tinh - phan da dang cong danh van van chat*.