Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
lang tuong » lang trong, bang tuong, lang muong
hien hanh » dieu hanh
trinh vat » trinh van, trinh luat, sinh vat
tuong dan » huong dan, tung dan, xuong dan
vat lang » va lang, van lang, vat mang
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 vat lang tuong dan toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh trinh vat lang tuong dan toan ban*.