Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » ban thanh, va tinh, le thanh
thai cua » than cua, tai cuc, tri cua
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
qua cao » qua cac, qua ca, qua cai
cao duc » dao duc, cao suc, giao duc
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (thu sach)) ky nang xa hoi. hieu qua cao duc ((va thanh) OR (gia thanh)) thai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu sach)) ky nang xa hoi. hieu qua cao duc ((va thanh) OR (gia thanh)) thai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (thu sach)) ky nang xa hoi. hieu qua cao duc ((va thanh) OR (gia thanh)) thai cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu sach)) ky nang xa hoi. hieu qua cao duc ((va thanh) OR (gia thanh)) thai cua te*.