Perhaps you should try some spelling variations:
trung va » truong va, trang va, trung ha
danh dau » lanh dao, hang dau, danh tu
hieu cao » chieu cao, hieu cac, hieu ca
danh sai » dung sai, danh bat, hanh san
cua tre » cua te, cuu tre, cua triet
truc va » thuc va, thuc vat
cao cau » cao cap, co cau, tao cau
nang ma » tang ma, sang ma, nang cao
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
tu sac » tu sach, tu cac, tu san

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 nang ma hoi. hieu cao cau ((truc va) OR (trung va)) ((danh sai) or (danh dau)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ma hoi. hieu cao cau ((truc va) OR (trung va)) ((danh sai) OR (danh dau)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ma hoi. hieu cao cau ((truc va) OR (trung va)) ((danh sai) or (danh dau)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ma hoi. hieu cao cau ((truc va) OR (trung va)) ((danh sai) or (danh dau)) cua tre*.