Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
dang tai » dang thai, dung tai, hang tai
hanh vai » hanh vi, hanh tai, hanh van
sach ky » sac ky, sach y, sach ty
hanh va » hang va, hanh vi
cu tren » tu tren, dua tren
tai hoi » tai khoi, dai hoi, tai hai
ky dang » ky nang, ky danh
ve cai » va cai, ve tai, ve cau
xuc va » duc va, tuc va, luc va
ve cac » va cac, vien cac

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 ky dang tai hoi. hieu ((ve cai) or (ve cac)) xuc va ((hanh vai) or (hanh va)) cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky dang tai hoi. hieu ((ve cai) OR (ve cac)) xuc va ((hanh vai) OR (hanh va)) cu tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ky dang tai hoi. hieu ((ve cai) or (ve cac)) xuc va ((hanh vai) or (hanh va)) cu tren*.