Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
gianh lai » gian lan
chau tre » chau tho, cho tre, cau tra
sach ky » sac ky, sach y, sach ty
anh lai » anh bai, anh tai, hanh lam
tu sach » thu sach, su sach, te sach
duc van » duc va, duc tan, duc manh
cam duc » cam xuc, cao duc, pham duc
van cam » van nam, van lam, van cau
thi van » thi lan, thi hanh, thi nang
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 ky nang x hoi. thi van cam duc van ((anh lai) OR (gianh lai)) ((chau tre) OR (chay tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. thi van cam duc van ((anh lai) or (gianh lai)) ((chau tre) OR (chay tren))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. thi van cam duc van ((anh lai) or (gianh lai)) ((chau tre) OR (chay tren))*.