Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
truc va » thuc va, thuc vat, trung va
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
ve cham » ve chat, vu cham, ve chim
doan vi » doan va, don vi, doan thi
va doan » va doanh, van doan, va dan
va cham » va chat, va tham
vi cua » vai cua, di cua
tu sai » tu bai, tu san, tu cai
ma hoi » mai hoi, xa hoi, ma hoa
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky sang ma hoi. hieu ((ve cham) or (va cham)) truc va doan vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky sang ma hoi. hieu ((ve cham) OR (va cham)) truc va doan vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky sang ma hoi. hieu ((ve cham) or (va cham)) truc va doan vi cua tre*.