Perhaps you should try some spelling variations:
nghiem xuan » nghiep luan, nghiep quan, nghi xuan
nghiem ban » nghiem van, nghiep bang, nghiem va
tuan nghia » van nghia
nghia duoc » nghia cuoc, nghia quoc, nghiem duoc
sach tuan » sach luan, mach tuan, sach quan
hanh thi » nhanh thi, hanh thoi, anh thi
duoc hoi » quoc hoi, duoc hoc, duoc si
so hanh » so sanh, so danh, co hanh
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: (( so hanh thi ((nghiem ban) OR (nghiem xuan)) hoc ) or ( bo sach tuan nghia duoc hoi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so hanh thi ((nghiem ban) OR (nghiem xuan)) hoc ) OR ( bo sach tuan nghia duoc hoi )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( so hanh thi ((nghiem ban) OR (nghiem xuan)) hoc ) or ( bo sach tuan nghia duoc hoi ))".
• Adding a wildcard symbol may retrieve word variants: (( so hanh thi ((nghiem ban) OR (nghiem xuan)) hoc ) or ( bo sach tuan nghia duoc hoi ))*.