Perhaps you should try some spelling variations:
tinh sach » tinh cach, tinh mach, sinh sach
sach van » sach han, sach va, bach van
dua tren » dung tren
nang xa » nang x, lang xa, nang ma
va tinh » may tinh
sach ky » sach y, sach ty, sach kem
van anh » van thanh, tuan anh, van minh
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
anh vi » hanh vi, anh va, anh ve

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) OR (sac ky)) nang xa hoi. lieu va tinh sach van anh vi ((cuu tre) or (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang xa hoi. lieu va tinh sach van anh vi ((cuu tre) OR (dua tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) nang xa hoi. lieu va tinh sach van anh vi ((cuu tre) or (dua tren))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sac ky)) nang xa hoi. lieu va tinh sach van anh vi ((cuu tre) or (dua tren))*.