Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » hieu qua
cho cua » co cua, chi cua, cho cu
xuc va » duc va, tuc va, luc va
va dac » va cac, va dao, va dau
cho ca » cho cac, cho can, cho cay

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 lang xa hoi. ((hieu va) or (lieu va)) cam xuc va dac ((cho cua) OR (cho ca)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. ((hieu va) OR (lieu va)) cam xuc va dac ((cho cua) OR (cho ca)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. ((hieu va) or (lieu va)) cam xuc va dac ((cho cua) OR (cho ca)) tre*".