Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
hanh vai » hanh vi, hanh va, hanh tai
dua tren » dung tren
tu sach » thu sach, su sach, te sach
cuu tre » cau tren, cau treo
va hanh » van hanh, va thanh, va danh
tuoc va » thuoc va, nuoc va, duoc va
ve bach » ve cach, vu bach, vi bach
hieu ve » hieu va, hieu van
cua tre » cua te, cua triet, cua thep
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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 y nang x hoi. hieu ve bach tuoc va hanh vai ((dua tren) or (((cuu tre) OR (cua tre))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. hieu ve bach tuoc va hanh vai ((dua tren) OR (((cuu tre) OR (cua tre)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x hoi. hieu ve bach tuoc va hanh vai ((dua tren) or (((cuu tre) OR (cua tre))))".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. hieu ve bach tuoc va hanh vai ((dua tren) or (((cuu tre) OR (cua tre))))*.