Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
toan tap » toan ban
chu van » cuu van, chu han

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 dung) OR (hanh dong)) luan ((nhung cong) or (dung cong)) manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu van - ((hanh dung) OR (hanh dong)) luan ((nhung cong) OR (dung cong)) manh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu van - ((hanh dung) OR (hanh dong)) luan ((nhung cong) or (dung cong)) manh toan tap".
• Adding a wildcard symbol may retrieve word variants: theo chu van - ((hanh dung) OR (hanh dong)) luan ((nhung cong) or (dung cong)) manh toan tap*.