Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh cua » manh cua, hang cua, hanh sua
hieu van » hieu va, thien van, lieu va
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
cam tuc » cam xuc, cam tu, nam thuc
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa

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