Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
lanh tranh » canh tranh, lan tranh, sach tranh
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((lanh tranh) or (hanh trinh)) he thong cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((lanh tranh) OR (hanh trinh)) he thong cong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((lanh tranh) or (hanh trinh)) he thong cong manh toan ban*.