Perhaps you should try some spelling variations:
vang cua » mang cua, hang cua, tang cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
van cua » ban cua, dan cua, nan cua
va cau » van cau, va cac, va dau
luc va » duc va, tuc va
loc va » hoc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x ho. hieu va cau ((luc va) OR (loc va)) danh ((van cua) or (vang cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x ho. hieu va cau ((luc va) OR (loc va)) danh ((van cua) OR (vang cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x ho. hieu va cau ((luc va) OR (loc va)) danh ((van cua) or (vang cua)) te".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x ho. hieu va cau ((luc va) OR (loc va)) danh ((van cua) or (vang cua)) te*.