Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cau treo » cau theo, cau tren, cau triet
nang mai » nang ma, nang tai, lang mai
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
xac va » tac va, ac va, bac va
tuc va » thuc va, truc va, tuc xa
vi cau » va cau, ve cau, di cau
xuc va » duc va, luc va

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 ty nang mai hoi. hieu va cac ((((xuc va) or (xac va))) or (tuc va)) hanh vi cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang mai hoi. hieu va cac ((((xuc va) OR (xac va))) OR (tuc va)) hanh vi cau treo*.