Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
hanh di » hanh vi, hanh de, hang di
cua tuc » cua duc, cua tu, cua thuoc
sach v » sach va, sach y, sach 2
v sang » va sang, ve sang, _ sang
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de cua

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 v sang ma hoi. hieu ve chat ((xuc van) or (duc van)) hanh di cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach v sang ma hoi. hieu ve chat ((xuc van) OR (duc van)) hanh di cua tuc*.