Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat tuc » chat xuc, luat tuc, chat huu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
van tai » von tai, van tuan
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang ma hoi. hieu van chat tuc va van tai ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ma hoi. hieu van chat tuc va van tai ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ma hoi. hieu van chat tuc va van tai ((cua triet) or (cua te))*.