Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
trong dong » trong cong, trong nong, trong dang
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
doc hieu » toc thieu, hoc thieu, hoc hien
dong bac » dong bang, dong luc, dong hoc
bac than » bac thanh, bac thang, ban than
than cau » toan cau, phan cau, 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) or (doc hieu)) tinh - hanh tranh cua trong dong bac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (doc hieu)) tinh - hanh tranh cua trong dong bac than cau*.