Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
xuc van » duc van, luc van, xuc ban
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
va cam » va cham, va cao, va cai
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach v nang xa hoi. hieu ((va cam) OR (va cac)) xuc van hanh vi su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach v nang xa hoi. hieu ((va cam) OR (va cac)) xuc van hanh vi su triet".
• Adding a wildcard symbol may retrieve word variants: tu sach v nang xa hoi. hieu ((va cam) OR (va cac)) xuc van hanh vi su triet*.