Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
va cham » va chat
va tham » van tham, va thanh, va thuat
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
vi cau » va cau, ve cau, di cau
x hoi » xa hoi, o hoi, x ho

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 x hoi. lieu ((va cham) OR (va tham)) luc va hanh vi cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x hoi. lieu ((va cham) OR (va tham)) luc va hanh vi cau tren".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. lieu ((va cham) OR (va tham)) luc va hanh vi cau tren*.