Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
tuc van » thuc van, truc van, duc van
hang vi » hang va, hanh vi, khang voi
hang di » hang doi, hang dien, hang dich
so hanh » so sanh, so danh, co hanh
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ve cac » va cac, vien cac
hanh y » hanh ky, anh y, hanh _
tuc va » thuc va, truc va, tuc xa
y nang » ky nang, ly nang, v nang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so hanh y nang xa hoi. hieu ve cac ((tuc van) OR (tuc va)) ((hang di) or (hang vi)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so hanh y nang xa hoi. hieu ve cac ((tuc van) OR (tuc va)) ((hang di) OR (hang vi)) va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so hanh y nang xa hoi. hieu ve cac ((tuc van) OR (tuc va)) ((hang di) or (hang vi)) va triet*".