Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
te sach » toc sach
ty nang » ty xang, ty hang, ly nang
va hanh » van hanh, va thanh, va danh
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
vi va » vi van, vai va, vu va

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 ((ty nang) or (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) xuc va hanh vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) xuc va hanh vi va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) or (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) xuc va hanh vi va triet*".