Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
vanh tai » hanh tai, anh tai, vanh dai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao suc, chat xuc
cao duc » dao duc, cao suc, giao duc
van tai » von tai, van tuan

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 ((cao xuc) OR (cao duc)) va ((vanh tai) or (van tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. hieu va ((cao xuc) OR (cao duc)) va ((vanh tai) OR (van tai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang xa hoi. hieu va ((cao xuc) OR (cao duc)) va ((vanh tai) or (van tai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. hieu va ((cao xuc) OR (cao duc)) va ((vanh tai) or (van tai)) cua triet*.