Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
chu van » cuu van, chu han
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu van - hanh ((tang cua) or (mang cua)) ((nhung cong) OR (dung cong)) dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu van - hanh ((tang cua) OR (mang cua)) ((nhung cong) OR (dung cong)) dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu van - hanh ((tang cua) or (mang cua)) ((nhung cong) OR (dung cong)) dan van ban".
• Adding a wildcard symbol may retrieve word variants: theo chu van - hanh ((tang cua) or (mang cua)) ((nhung cong) OR (dung cong)) dan van ban*.