Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
gianh lai » gian lan
thu sach » thuat sach, thuoc sach, thu hoach
duc van » duc va, duc tan, duc manh
anh lai » anh bai, anh tai, hanh lam
tu sach » su sach, te sach, tu cach
van cam » van nam, van lam, van cau
thi van » thi lan, thi hanh, thi nang
cam duc » cam xuc, cao duc, pham duc
x hoi » xa hoi, o hoi, x ho

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) OR (thu sach)) ky nang x hoi. thi van cam duc van ((anh lai) OR (gianh lai)) chay tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ky nang x hoi. thi van cam duc van ((anh lai) or (gianh lai)) chay tren~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) ky nang x hoi. thi van cam duc van ((anh lai) or (gianh lai)) chay tren*.