Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
trong ban » trong tan, trong quan, trong cac
trong san » trong cac, cong san, dong san
chi hanh » chi nhanh, chi thanh, thi hanh
cua dung » cua dang, cua dong, qua dung
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 hanh - hanh tranh cua dung ((trong ban) or (trong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi hanh - hanh tranh cua dung ((trong ban) OR (trong san)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chi hanh - hanh tranh cua dung ((trong ban) or (trong san)) toan cao*.