Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
luat hang » luat hanh, luat chung, luat quang
hang cong » dang cong, hang nong, bang cong
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than
hoi chu » hoi chuc
o chau » a chau, 3 chau, moc chau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoi chu) or (o chau)) tinh - hanh trinh luat hang cong ((dan toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoi chu) OR (o chau)) tinh - hanh trinh luat hang cong ((dan toan) OR (dan than)) cau.
• Adding a wildcard symbol may retrieve word variants: ((hoi chu) or (o chau)) tinh - hanh trinh luat hang cong ((dan toan) or (dan than)) cau*.