Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach ky » sac ky, sach ty, sach kem
va xanh » va danh, va hanh, va anh
xanh di » danh di, vanh dai, xanh tai
xuc va » duc va, tuc va, luc va
cua te » cua tu
va cam » va cham, va cac, va cao

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

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