Perhaps you should try some spelling variations:
nghiep vung » nghiep dung, nghiep hung, nghiep nhung
thuat sach » thuat lanh, thuat san
sach trach » sach tranh, sach truc, sat trach
tai nghiep » mai nghiep, tac nghiep, trai nghiem
nghiem va » nghiep va, nghiep vua, nghiep vu
nhiem va » hiem xa
sach tai » sach bai, sach tham, sach dao
vung moc » dung mo, dung moi, dung mot
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thuat sach trach ((nhiem va) OR (nghiem va)) hoc ) or ( te sach tai nghiep vung moc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thuat sach trach ((nhiem va) OR (nghiem va)) hoc ) OR ( te sach tai nghiep vung moc ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thuat sach trach ((nhiem va) OR (nghiem va)) hoc ) or ( te sach tai nghiep vung moc ))*".