Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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 y nang xa hoi. hieu ((ve cac) or (va cao)) tuc va hanh ((vi cua) OR (di cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ((ve cac) OR (va cao)) tuc va hanh ((vi cua) OR (di cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ((ve cac) or (va cao)) tuc va hanh ((vi cua) OR (di cua)) te".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ((ve cac) or (va cao)) tuc va hanh ((vi cua) OR (di cua)) te*.