Perhaps you should try some spelling variations:
nghien trung » nghiem trung, nguyen trung, nghiep trong
mai nghiep » lam nghiep, cac nghiep, va nghiep
tam nghien » lam nghiep, va nghien
xi nghiep » su nghiep
thu bach » thi bach, thu sach, thu hoach
luan hoc » luan hoan, quang hoc, luan khoa
sach tam » sach tham, sach tai, sach dao
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu bach ((mai nghiep) OR (xi nghiep)) luan hoc ) or ( te sach tam nghien trung quoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu bach ((mai nghiep) OR (xi nghiep)) luan hoc ) OR ( te sach tam nghien trung quoc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thu bach ((mai nghiep) OR (xi nghiep)) luan hoc ) or ( te sach tam nghien trung quoc ))".
• Adding a wildcard symbol may retrieve word variants: (( thu bach ((mai nghiep) OR (xi nghiep)) luan hoc ) or ( te sach tam nghien trung quoc ))*.