Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
hanh tai » thanh tai, hang tai, han tai
van chat » cao chat
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
hanh va » hang va, hanh vi
tu sach » thu sach, su sach, te sach
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc 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: tu sach ky sang ma hoi. hieu ((ve cham) or (van chat)) xuc va ((hanh tai) or (hanh va)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang ma hoi. hieu ((ve cham) OR (van chat)) xuc va ((hanh tai) OR (hanh va)) cau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang ma hoi. hieu ((ve cham) or (van chat)) xuc va ((hanh tai) or (hanh va)) cau tren*.