Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam
anh vi » anh va, anh ve, anh vu
cua su » qua su

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. hieu ve cam xuc van ((anh vi) OR (hanh vi)) cua su~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. hieu ve cam xuc van ((anh vi) or (hanh vi)) cua su*.