Perhaps you should try some spelling variations:
te sach » toc sach
va cham » va chat, va tham
va danh » va dinh, va hanh, dia danh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach v » sach va, sach y, sach 2
va dan » ca dan, va dao, va dau
v nang » va nang, vu nang, van nang
cuc te » cua te, cuc tieu
thue » thu, thuc, thuy

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 nang xa hoi. hieu va cham soc ((va danh) OR (va dan)) dien ((cuc te) or (cuc thue))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang xa hoi. hieu va cham soc ((va danh) OR (va dan)) dien ((cuc te) OR (cuc thue)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang xa hoi. hieu va cham soc ((va danh) OR (va dan)) dien ((cuc te) or (cuc thue))".
• Adding a wildcard symbol may retrieve word variants: te sach v nang xa hoi. hieu va cham soc ((va danh) OR (va dan)) dien ((cuc te) or (cuc thue))*.