Perhaps you should try some spelling variations:
van chat » cao chat
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van dam
van cau » van dau, van hau, toan cau
va hanh » van hanh, va thanh, va danh
cu tren » tu tren, dua tren
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
vi cu » vi su, vi xu, vi du

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 cam) or (((van cau) OR (van chat)))) xuc va hanh vi cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((van cam) OR (((van cau) OR (van chat)))) xuc va hanh vi cu tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((van cam) or (((van cau) OR (van chat)))) xuc va hanh vi cu tren".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((van cam) or (((van cau) OR (van chat)))) xuc va hanh vi cu tren*.