Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
hanh mang » nhanh mang, hanh trang, nhanh lang
hang cong » dang cong, hang nong, bang cong
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
tac than » tac thanh, tam than, tac nhan
than cao » toan cao, thai cao, than cap

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 manh - ((canh tranh) or (hanh mang)) cua ((nhung cong) OR (hang cong)) tac than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu manh - ((canh tranh) OR (hanh mang)) cua ((nhung cong) OR (hang cong)) tac than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu manh - ((canh tranh) or (hanh mang)) cua ((nhung cong) OR (hang cong)) tac than cao".
• Adding a wildcard symbol may retrieve word variants: theo chu manh - ((canh tranh) or (hanh mang)) cua ((nhung cong) OR (hang cong)) tac than cao*.