Perhaps you should try some spelling variations:
thi nghiem » thuc nghiem
thuat sach » thuat lanh, thuat san
nghiep dai » nghiep tai, nghiep bai, nghiep va
nha khach » he khach
cua khach » cua thanh
nghiem de » nghiem d, nghiem do, nghiem te
xi nghiep » su nghiep
sach xi » sach xa, sach xu, sach bai
de hoc » te hoc, du hoc, dien hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((nha khach) OR (cua khach)) thi nghiem de hoc ) or ( thuat sach xi nghiep dai hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((nha khach) OR (cua khach)) thi nghiem de hoc ) OR ( thuat sach xi nghiep dai hoc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((nha khach) OR (cua khach)) thi nghiem de hoc ) or ( thuat sach xi nghiep dai hoc ))".
• Adding a wildcard symbol may retrieve word variants: (( ((nha khach) OR (cua khach)) thi nghiem de hoc ) or ( thuat sach xi nghiep dai hoc ))*.