Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
lang huong » lan huong, lang muong, lang tuong
hien hanh » dieu hanh
trinh va » trinh van, trinh vat, trinh ve
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
va lang » va nang, hoa lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - hanh trinh va lang huong dan than ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh trinh va lang huong dan than ban*.