Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
vu nang » vuc nang, va nang, vu dang
truc va » thuc va, thuc vat, trung va
di cua » dai cua, doi cua, de cua
ve cai » va cai, ve cac, ve tai
v nang » va nang, van nang, voi nang
cua te » cua tu

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 ((v nang) OR (vu nang)) xa hoi. hieu ((ve cai) OR (va cac)) truc va hanh di cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((v nang) OR (vu nang)) xa hoi. hieu ((ve cai) or (va cac)) truc va hanh di cua te~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((v nang) OR (vu nang)) xa hoi. hieu ((ve cai) or (va cac)) truc va hanh di cua te*.