Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
thanh tai » thanh hai, thanh toan, doanh tai
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
qua cac » cua cac
tai cua » thai cua, tai cuc, tri cua
bo va » bao va, do va, co va
so va » so van, so vat, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc sach ky nang xa hoi. hieu qua cac ((bo va) OR (so va)) thanh tai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ky nang xa hoi. hieu qua cac ((bo va) OR (so va)) thanh tai cua triet".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ky nang xa hoi. hieu qua cac ((bo va) OR (so va)) thanh tai cua triet*.