Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh van » trinh han, trinh quan, trinh toan
tong cong » trong cong, cong cong, dung cong
doi lieu » duoc lieu, doi chieu, tai lieu
van tong » van thong, van trong, van tuong
dan toan » van toan, dan than, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi lieu) or (du lieu)) tinh - hanh trinh van tong cong ((dan toan) or (van tuan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi lieu) OR (du lieu)) tinh - hanh trinh van tong cong ((dan toan) OR (van tuan)) ban.
• Adding a wildcard symbol may retrieve word variants: ((doi lieu) or (du lieu)) tinh - hanh trinh van tong cong ((dan toan) or (van tuan)) ban*.