Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, dua tren
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
dinh va » dinh van, dinh ve, tinh va
tu sai » tu bai, tu san, tu cai
tuc va » thuc va, truc va, tuc xa
sai ky » sac ky
xuc va » duc va, luc 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 (tuc va)) dinh va ((cua tre) OR (cua triet))~.
• 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 (tuc va)) dinh va ((cua tre) OR (cua triet)).
• 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 (tuc va)) dinh va ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu ve chat ((xuc va) or (tuc va)) dinh va ((cua tre) OR (cua triet))*.