Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
tuc van » thuc van, truc van, tuc va
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: vay ((khach ty) OR (sach ty)) nang xa hoi. ((hieu ve) or (hieu va)) cam tuc van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vay ((khach ty) OR (sach ty)) nang xa hoi. ((hieu ve) OR (hieu va)) cam tuc van hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vay ((khach ty) OR (sach ty)) nang xa hoi. ((hieu ve) or (hieu va)) cam tuc van hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: vay ((khach ty) OR (sach ty)) nang xa hoi. ((hieu ve) or (hieu va)) cam tuc van hanh vi cua triet*.