Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cau treo » cau theo, cau tren, cau triet
tu sach » thu sach, su sach, te sach
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi cau » va cau, ve cau, di cau

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) or (((thuat sach) or (thuat toan)))) ky sang ma hoi. hieu ve cam xuc va hanh vi cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((thuat sach) OR (thuat toan)))) ky sang ma hoi. hieu ve cam xuc va hanh vi cau treo.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((thuat sach) or (thuat toan)))) ky sang ma hoi. hieu ve cam xuc va hanh vi cau treo*.