Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, le thanh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chat, vu cham
va tinh » may tinh
va cua » va chua, via cua, ca cua
cua te » cua tu
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) or (va cac)) duc ((va thanh) or (va tinh)) va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ((ve cham) OR (va cac)) duc ((va thanh) OR (va tinh)) va cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu ((ve cham) or (va cac)) duc ((va thanh) or (va tinh)) va cua te*.