Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
tinh va » tich va, trinh van, trinh vat
dinh va » dinh van, dinh ve, sinh va
tu sai » tu bai, tu san, tu cai
luc va » duc va, tuc va, loc va
sai ky » sac ky
xuc va » duc va, tuc va, xac va
ma hoi » mai hoi, xa hoi, ma hoa

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