Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cau trung » cau truong, cac trung, cao trung
trung va » truong va, trang va, trung ha
hieu va » lieu va, hieu qua
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vu sach » su sach, vu khach
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
lo nang » ho nang, ly nang, loai 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 (vu bach)) lo nang xa hoi. ((hieu ve) or (hieu va)) cau trung va danh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu bach)) lo nang xa hoi. ((hieu ve) OR (hieu va)) cau trung va danh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu bach)) lo nang xa hoi. ((hieu ve) or (hieu va)) cau trung va danh vi cua triet*".