Perhaps you should try some spelling variations:
thuong nghiep » huong nghiep, truong nghien, cong nghiep
khanh thuong » thanh thuong, hang thuong, khanh phong
nghiem va » nghiep va, nghiep vua
nghiep vu » nghiep va
van khanh » van thanh, van hanh, van anh
nghiep te » nghiep ke, nghiep tu, nghiem te
khac thi » khau thi, khuc thi, khuat thi
tu khac » vu khac, su khac, ta khac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu khac thi ((nghiem va) or (nghiep vu)) hoc ) or ( van khanh thuong nghiep te hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu khac thi ((nghiem va) OR (nghiep vu)) hoc ) OR ( van khanh thuong nghiep te hoc )).
• Adding a wildcard symbol may retrieve word variants: (( tu khac thi ((nghiem va) or (nghiep vu)) hoc ) or ( van khanh thuong nghiep te hoc ))*.