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
chi xanh » chi anh, chi danh, chi hanh
ban than » ban thanh, van thanh, ban hang
than cao » toan cao, thai cao, than cap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - ((hanh dung) OR (hanh dong)) luan ((nhung cong) or (dung cong)) ban than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((hanh dung) OR (hanh dong)) luan ((nhung cong) OR (dung cong)) ban than cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - ((hanh dung) OR (hanh dong)) luan ((nhung cong) or (dung cong)) ban than cao*".