Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
lang van » dang van, tang van, hoang van
thanh vi » thanh va, thanh ve, nhanh vi
tuc van » thuc van, truc van, tuc va
va cham » va chat, va tham
ve cham » ve chat, vu cham, ve chim
van hoi » van hoa, van hoc, van hoe
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y lang van hoi. hieu ((ve cham) or (va cham)) tuc van ((thanh vi) OR (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y lang van hoi. hieu ((ve cham) OR (va cham)) tuc van ((thanh vi) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y lang van hoi. hieu ((ve cham) or (va cham)) tuc van ((thanh vi) OR (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: toc sach y lang van hoi. hieu ((ve cham) or (va cham)) tuc van ((thanh vi) OR (hanh vi)) cua tre*.