Perhaps you should try some spelling variations:
thi nghiep » thai nghien, xi nghiep, tot nghiep
thi nghiem » thuc nghiem
cua khanh » cua thanh, cua khach, cua hang
khanh thi » nhanh thi, khanh thu, nhanh thai
nghiem du » nghiem dau, nghiem d, nghiem de
cua nhan » ca nhan, cua ngan, cua nha
dien hoc » dien hoa, khien hoc, tin hoc
du hoc » tu hoc, duoc hoc

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( cua khanh thi nghiem du hoc ) OR ( cua nhan ((thi nghiep) OR (khoi nghiep)) dien hoc ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cua khanh thi nghiem du hoc ) or ( cua nhan ((thi nghiep) OR (khoi nghiep)) dien hoc ))~".
• Adding a wildcard symbol may retrieve word variants: (( cua khanh thi nghiem du hoc ) or ( cua nhan ((thi nghiep) OR (khoi nghiep)) dien hoc ))*.