Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
luoc van » luc van, luot van, quoc van
luoc can » luc canh, hoc can, luoc dai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
luoc va » nuoc va, duoc va, loc 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: te sach ky nang xa hoi. hieu va cham ((((luoc van) OR (luoc va))) or (luoc can)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu va cham ((((luoc van) OR (luoc va))) OR (luoc can)) hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu va cham ((((luoc van) OR (luoc va))) or (luoc can)) hanh vi cua triet*".