Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
tu sach » thu sach, su sach, te sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
danh di » danh du, xanh di, danh dien
cam duc » cam xuc, cao duc, pham duc
danh vi » hanh vi, dinh vi, danh va
tu sac » tu cac, tu san, tu bac
va cam » va cham, va cac, va cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu sach)) ky lang xa hoi. hieu va cam duc va ((danh vi) or (danh di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky lang xa hoi. hieu va cam duc va ((danh vi) OR (danh di)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu sach)) ky lang xa hoi. hieu va cam duc va ((danh vi) or (danh di)) cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu sach)) ky lang xa hoi. hieu va cam duc va ((danh vi) or (danh di)) cua tre*.