Perhaps you should try some spelling variations:
thuat nghiep » thuat nhiet, thuat ghep, thuc nghiem
sach thuat » sach tham, dich thuat, cac thuat
cach trai » khach trai, cach thoi, sach tai
nghiem mo » nghiem mon, nghiem moi, nghiem ma
nghiep y » nghiep ly, nghiep o, nghiep cay
su sach » so sach, vu sach
cach ta » cach tu, cach pha, xach tay
mo hoc » mon hoc, co hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach thuat nghiep y hoc ) or ( tu ((cach trai) OR (cach ta)) nghiem mo hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach thuat nghiep y hoc ) OR ( tu ((cach trai) OR (cach ta)) nghiem mo hoc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( su sach thuat nghiep y hoc ) or ( tu ((cach trai) OR (cach ta)) nghiem mo hoc ))".
• Adding a wildcard symbol may retrieve word variants: (( su sach thuat nghiep y hoc ) or ( tu ((cach trai) OR (cach ta)) nghiem mo hoc ))*.