Perhaps you should try some spelling variations:
xanh hanh » danh thanh, ban hanh, van hanh
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
soc xanh » hoc xanh, song xanh, tuoc xanh
hanh lai » hanh lam, hanh tai, thanh lap
chau tre » chay tren, chau tho, cho tre
tu sach » thu sach, su sach, te sach
so sach » so sanh, bo sach, co sach
ky tang » ky dang, kho tang, ky trong
ma hoi » mai hoi, xa hoi, ma hoa

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 (so sach)) ((ky tang) OR (ky nang)) ma hoi. hieu van cham soc xanh hanh lai chau tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (so sach)) ((ky tang) OR (ky nang)) ma hoi. hieu van cham soc xanh hanh lai chau tre~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) ((ky tang) OR (ky nang)) ma hoi. hieu van cham soc xanh hanh lai chau tre*.