Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » thong cong, hang cong, nhung don
tranh cua » doanh cua, manh cua
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
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) or (ho chieu)) xanh - hanh tranh cua ((nhung cong) or (dung cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (ho chieu)) xanh - hanh tranh cua ((nhung cong) OR (dung cong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (ho chieu)) xanh - hanh tranh cua ((nhung cong) or (dung cong)) dan toan cao*.