Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh tin » trinh kinh, trinh toan, trinh tu
trong van » trong cac
ho kieu » ho lieu, so kieu, thi kieu
so lieu » so dieu
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho kieu) or (so lieu)) tinh - hanh trinh tin dung trong van tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho kieu) OR (so lieu)) tinh - hanh trinh tin dung trong van tan tap*.