Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang xa hoi. hieu ve cac ((tuc va) or (duc va)) dinh ((di cua) OR (de cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang xa hoi. hieu ve cac ((tuc va) OR (duc va)) dinh ((di cua) OR (de cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang xa hoi. hieu ve cac ((tuc va) or (duc va)) dinh ((di cua) OR (de cua)) te".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. hieu ve cac ((tuc va) or (duc va)) dinh ((di cua) OR (de cua)) te*.