Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cua tre » cuu tre, dua tren, cua thep
cac lo » cac lop, cac co, cac bo
lo van » le van, vo van, so van
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: thu sach ky nang xa hoi. hieu va cac lo van thanh vai ((((cua tre) or (cua triet))) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. hieu va cac lo van thanh vai ((((cua tre) OR (cua triet))) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. hieu va cac lo van thanh vai ((((cua tre) or (cua triet))) or (cua te))*.