Perhaps you should try some spelling variations:
thien van » thi van
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
thuc va » thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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 ky sang ma hoi. thien van nam ((thuc va) or (thuc vat)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang ma hoi. thien van nam ((thuc va) OR (thuc vat)) hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ma hoi. thien van nam ((thuc va) or (thuc vat)) hanh vi cua tre*.