Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
nhung huong » nhung phuong, nhung tuong, nhung cong
hanh trinh » canh tranh, hanh chinh
lanh tranh » canh tranh, lan tranh, sach tranh
hieu cach » hieu cac, chieu sach, hieu ca
hoc hieu » hoc thieu, hoc hien, doc hieu
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cach - ((lanh tranh) or (hanh trinh)) cua ((nhung huong) or (nhung chong)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - ((lanh tranh) OR (hanh trinh)) cua ((nhung huong) OR (nhung chong)) van toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - ((lanh tranh) or (hanh trinh)) cua ((nhung huong) or (nhung chong)) van toan cao*.