Perhaps you should try some spelling variations:
chinh nghiep » doanh nghiep, cong nghiep, kinh nghiem
khanh chinh » hang chinh, khanh chien, khanh linh
chinh nghe » chinh ngan, hanh nghe, trinh nghe
nghiep tu » nghiep vu, nghiep vua, nghiep cua
duoc hoc » quoc hoi
so hanh » so sanh, so danh, co hanh
tu hoc » te hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so hanh chinh nghiep tu hoc ) or ( duy khanh chinh nghe ((du hoc) or (duoc hoc)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so hanh chinh nghiep tu hoc ) OR ( duy khanh chinh nghe ((du hoc) OR (duoc hoc)) )).
• Adding a wildcard symbol may retrieve word variants: (( so hanh chinh nghiep tu hoc ) or ( duy khanh chinh nghe ((du hoc) or (duoc hoc)) ))*.