Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
cuu tre » cua tre, cau tren, cau treo
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
tu sach » su sach, te sach, tu cach
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi cuu » vi luu, vinh cuu
tu sac » tu cac, tu san, tu bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sac) OR (tu sach))) or (thu sach)) ky lang xa hoi. hieu ve cam xuc va hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sac) OR (tu sach))) OR (thu sach)) ky lang xa hoi. hieu ve cam xuc va hanh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sac) OR (tu sach))) or (thu sach)) ky lang xa hoi. hieu ve cam xuc va hanh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((((tu sac) OR (tu sach))) or (thu sach)) ky lang xa hoi. hieu ve cam xuc va hanh vi cuu tre*.