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

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (su sach)) y nang xa hoi. ((hieu ve) or (hieu va)) cau trung van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) y nang xa hoi. ((hieu ve) OR (hieu va)) cau trung van hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) y nang xa hoi. ((hieu ve) or (hieu va)) cau trung van hanh vi cua triet*".