Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
doc hieu » toc thieu, hoc thieu, hoc hien
van toan » van tuan, van tan, van thanh
toan tap » toan ban
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: ((doc hieu) or (doi chi)) xanh - hanh tranh cua ((trong cong) or (hang cong)) van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (doi chi)) xanh - hanh tranh cua ((trong cong) OR (hang cong)) van toan tap.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (doi chi)) xanh - hanh tranh cua ((trong cong) or (hang cong)) van toan tap*.