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 va » lieu va, hieu qua
hanh ca » hanh cac, hanh cat, hanh cua
tu sac » tu sach, tu cac, tu san
luc va » duc va, loc va
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
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 sac ky nang ma hoi. hieu va cac ((tuc va) or (luc va)) hanh ca ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ma hoi. hieu va cac ((tuc va) OR (luc va)) hanh ca ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ma hoi. hieu va cac ((tuc va) or (luc va)) hanh ca ((cua tre) or (cua triet))*.