Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
cac truc » cau truc, cac tru, cac trung
su triet » su viet, su tien, ve triet
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
qua cac » cua cac
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu sach)) y nang xa hoi. hieu qua cac truc va hanh vi ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang xa hoi. hieu qua cac truc va hanh vi ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y nang xa hoi. hieu qua cac truc va hanh vi ((cua triet) or (su triet))*.