Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
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: ((doi khi) or (hoc hien)) xanh - hanh trinh luan nang cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi khi) OR (hoc hien)) xanh - hanh trinh luan nang cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((doi khi) or (hoc hien)) xanh - hanh trinh luan nang cong dan toan ban*.