Perhaps you should try some spelling variations:
sach nang » cach mang, sach dung, sach danh
trinh su » trinh tu, trinh san, trinh cau
ton giao » toan giao, hoc giao, so giao
thu sach » tu sach, thuat sach, thuoc sach
dinh su » dinh so, hinh su, dinh cu
nang su » dang su, nang du, nang tu
vu ha » vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu ha ((dinh su) or (trinh su)) - ton giao ) or ( thu sach nang su - so (giai or gian) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu ha ((dinh su) OR (trinh su)) - ton giao ) OR ( thu sach nang su - so (giai OR gian) )).
• Adding a wildcard symbol may retrieve word variants: (( vu ha ((dinh su) or (trinh su)) - ton giao ) or ( thu sach nang su - so (giai or gian) ))*.