Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
cua tre » cua te, cua triet, dua tren
van anh » van thanh, tuan anh, van minh
xuc van » duc van, luc van, xuc ban
sach ky » sac ky, sach y, sach ty
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang ma » tang ma, sang ma, nang cao
anh vi » hanh vi, anh va, anh ve
ve cam » ve cham, ve cac, va cam

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