Perhaps you should try some spelling variations:
cau trung » cau truong, cac trung, cao trung
ve triet » va trien, su triet
trung va » truong va, trang va, trung ha
sach ly » sach y, sach ty, sach hay
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
sach lo » sach dao, sach doi, sach hoi
vi ve » va ve, gi ve, ve ve

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 ly) OR (sach lo)) nang xa hoi. ((hieu ve) or (hieu va)) cau trung va danh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ly) OR (sach lo)) nang xa hoi. ((hieu ve) OR (hieu va)) cau trung va danh vi ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ly) OR (sach lo)) nang xa hoi. ((hieu ve) or (hieu va)) cau trung va danh vi ve triet*".