Perhaps you should try some spelling variations:
thai nghien » thai nguyen, thi nghiem, phap nghien
nghiep vua » nghiep vu
khach thai » khach trai, khac trai, nhanh thai
nghiep va » nghiep vu
tan khach » can khach, tran khanh, van khanh
nghien tu » nghiep tu, nghien cuu, nghiep vu
khuc thi » thuc thi, chuc thi, khac thi
tu khuc » tu thuc, tuan khuc
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: (( tu khuc thi ((nghiep vua) OR (nghiep va)) hoc ) OR ( tan khach thai nghien tu hoc ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu khuc thi ((nghiep vua) OR (nghiep va)) hoc ) OR ( tan khach thai nghien tu hoc ))".
• Adding a wildcard symbol may retrieve word variants: (( tu khuc thi ((nghiep vua) OR (nghiep va)) hoc ) OR ( tan khach thai nghien tu hoc ))*.