Perhaps you should try some spelling variations:
dien cua » dieu cua, dien cuc, dien cu
qua cham » qua hai, qua cac, va cham
va danh » va dinh, va hanh, dia danh
va dan » ca dan, va dao, va dau
cham o » cham soc
sach v » sach va, sach 2, sach vay
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach v) or (sach y)) nang x hoi. hieu qua cham o ((va danh) OR (va dan)) dien cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach v) OR (sach y)) nang x hoi. hieu qua cham o ((va danh) OR (va dan)) dien cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach v) or (sach y)) nang x hoi. hieu qua cham o ((va danh) OR (va dan)) dien cua te".
• Adding a wildcard symbol may retrieve word variants: te ((sach v) or (sach y)) nang x hoi. hieu qua cham o ((va danh) OR (va dan)) dien cua te*.