Perhaps you should try some spelling variations:
nang van » dang van, tang van, lang van
bang cua » ban cua, hang cua, tang cua
mang cua » manh cua, dung cua, ban cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu van
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van

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 van hoa. ((hieu ve) or (hieu va)) cam xuc van dong ((bang cua) OR (mang cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang van hoa. ((hieu ve) OR (hieu va)) cam xuc van dong ((bang cua) OR (mang cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang van hoa. ((hieu ve) or (hieu va)) cam xuc van dong ((bang cua) OR (mang cua)) tu".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang van hoa. ((hieu ve) or (hieu va)) cam xuc van dong ((bang cua) OR (mang cua)) tu*.