Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, tu cach
te sach » toc sach
thi van » thi lan, thi hanh, thi nang
ca tren » cau tren, cu tren, la tren
nam tu » nam thu, nam thuc
x hoi » xa hoi, o hoi, x ho
vi ca » vit ca, li ca, va ca

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) OR (te sach)) ky nang x hoi. ((thien van) or (thi van)) nam tu va thanh vi ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang x hoi. ((thien van) OR (thi van)) nam tu va thanh vi ca tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) ky nang x hoi. ((thien van) or (thi van)) nam tu va thanh vi ca tren*".