Perhaps you should try some spelling variations:
nghiem ban » nghiem van, nghiem xuan, nghiep bang
tuan nghia » van nghia
nghia cuoc » nghi cuoc, nghia duoc, nghia quoc
nhanh thi » nhanh thai, nhanh thuc, nhan tai
sach tuan » sach luan, mach tuan, sach quan
cuoc khoi » buoc khoi, cuoc doi, quoc hoi
hanh thi » hanh thoi, anh thi, hanh tai
ban hoc » bang hoc, van hoc, bai hoc
bo sach » co sach, hoc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( co ((hanh thi) OR (nhanh thi)) nghiem ban hoc ) or ( bo sach tuan nghia cuoc khoi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( co ((hanh thi) OR (nhanh thi)) nghiem ban hoc ) OR ( bo sach tuan nghia cuoc khoi )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( co ((hanh thi) OR (nhanh thi)) nghiem ban hoc ) or ( bo sach tuan nghia cuoc khoi ))".
• Adding a wildcard symbol may retrieve word variants: (( co ((hanh thi) OR (nhanh thi)) nghiem ban hoc ) or ( bo sach tuan nghia cuoc khoi ))*.