Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
hanh de » hanh ve, hanh kem
thu van » thuc van, thuy van, tu van
cam thu » nam thu, cac thu, ca thu
su sach » so sach, vu sach
hieu ve » hieu va
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
de cua » le cua, te cua, dieu 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) or (ly nang)) xa hoi. ((hieu ve) OR (hieu van)) cam thu van hanh de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (ly nang)) xa hoi. ((hieu ve) OR (hieu van)) cam thu van hanh de cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) or (ly nang)) xa hoi. ((hieu ve) OR (hieu van)) cam thu van hanh de cua triet*".