Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
vai cua » dai cua, hai cua, lai cua
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
bo van » vo van, so van, do van
ve bac » ve bao, ve ban, he bac
vi cua » di cua
ve cac » va cac, vien cac

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 ((ve bac) or (ve cac)) bo van thanh ((vi cua) OR (vai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((ve bac) OR (ve cac)) bo van thanh ((vi cua) OR (vai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((ve bac) or (ve cac)) bo van thanh ((vi cua) OR (vai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((ve bac) or (ve cac)) bo van thanh ((vi cua) OR (vai cua)) triet*.