Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
thai cua » than cua, tai cuc, tri cua
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cam tuc » cam xuc, nam thuc, dam thuc
va hanh » van hanh, va thanh, va danh
cam tu » cam thu, nam tu, dam tu
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang xa hoi. lieu va ((cam tuc) OR (cam tu)) ((va hanh) or (va dan)) thai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang xa hoi. lieu va ((cam tuc) OR (cam tu)) ((va hanh) OR (va dan)) thai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. lieu va ((cam tuc) OR (cam tu)) ((va hanh) or (va dan)) thai cua triet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. lieu va ((cam tuc) OR (cam tu)) ((va hanh) or (va dan)) thai cua triet*.