Perhaps you should try some spelling variations:
trung van » truong van, trong van, trung va
cau trung » cau truong, cac trung, cao trung
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
hanh di » hanh vi, hanh de, hang di
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de cua

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))) or (hieu qua)) cau trung van hanh di cua 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))) OR (hieu qua)) cau trung van hanh di cua 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))) or (hieu qua)) cau trung van hanh di cua triet*".