Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
bac nuoc » cac nuoc, bach tuoc, sach nuoc
cong cua » cong cu, dong cua, huong cua
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
van bac » van ban, van bao, van hac
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
co cua » con cua, ca cua, cuoi cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang xa hoi. hieu van bac nuoc ((va hanh) or (van thanh)) ((co cua) OR (cong cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu van bac nuoc ((va hanh) OR (van thanh)) ((co cua) OR (cong cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu van bac nuoc ((va hanh) or (van thanh)) ((co cua) OR (cong cua)) triet*".