Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
va nang » van nang, da nang, cam nang
nang xa » nang x, lang xa, nang ma
cac xuc » cac nuoc, chat xuc, cac cuoc
sach va » sach xa, sach ha, sach dao
hanh di » hanh vi, hanh de, danh di
hang di » hang doi, hang vi, hang dien

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

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