Perhaps you should try some spelling variations:
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac loc » cac lop, cac toc, cac hoc
va dung » van dung, va duong, vat dung
sai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi cua
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang xa hoi. hieu ve cac loc va dung ((sai cua) OR (hai cua)) te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ve cac loc va dung ((sai cua) OR (hai cua)) te".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ve cac loc va dung ((sai cua) OR (hai cua)) te*.