Perhaps you should try some spelling variations:
dua tren » dung tren
cham duc » pham duc, cham soc, pham duy
tu sach » thu sach, su sach, te sach
xanh di » danh di, vanh dai, xanh tai
sach ky » sac ky, sach y, sach ty
cuu tre » cua tre, cau tren, cau treo
duc ban » duc tan, duc van, dua ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
anh di » danh di, anh d, anh du
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 ky nang x hoi. hieu ve cham duc ban ((anh di) or (xanh di)) ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ve cham duc ban ((anh di) OR (xanh di)) ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu ve cham duc ban ((anh di) or (xanh di)) ((dua tren) or (cuu tre))*.