Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
san van » tan van, luan van, tran van
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
anh vi » anh va, anh ve, anh vu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang xa hoi. lieu va thanh san van ((anh vi) or (hanh vi)) ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. lieu va thanh san van ((anh vi) OR (hanh vi)) ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. lieu va thanh san van ((anh vi) or (hanh vi)) ((cuu tre) or (cua tre))*.